Recent peer-reviewed publications and invited reviews:
- Kirstin Alberi, Junqiao Wu, Robert Kudrawiec and Yasushi Nanishi, Editorial: Native Defects, Impurities and the Electronic Structure of Compound Semiconductors: A Tribute to Dr. Wladyslaw Walukiewicz, J. Appl. Phys., 136, 060401 (2024). (This is a special issue in honor of Dr. Wladek Walukiewicz).
- Runxuan Li, Brian Blankenship, Junqiao Wu, Yoonsoo Rho, Jingang Li, Costas Grigoropoulos, Laser-Aided Processing and Functionalization of 2D Materials, Appl. Phys. Lett., 15, 070502 (2024).
- Rundi Yang, Jingang Li, Yuhang Cai, Brian Blankenship, Junqiao Wu, Costas P. Grigoropoulos, Near-Field Nanoimaging of Structural Phases and Carrier Dynamics in Strained Vanadium Dioxide Nanowires, ACS Photonics, 11, 3359 (2024).
- Yuhang Cai, Zhaowu Wang, Jiawei Wan, Jiachen Li, Ruihan Guo, Joel W. Ager, Ali Javey, Haimei Zheng, Jun Jiang, and Junqiao Wu, Ion Diffusion Retarded by Diverging Chemical Susceptibility, Nature Commun., 15, 5814 (2024). (PDF).
- Yin Liu, Lei Jin, Tribhuwan Pandey, Haoye Sun, Yuzi Liu, Xun Li, Yueyin Wang, Tao Zhou, Rui Chen, Yongwen Sun, Yang Yang, Daryl C. Chrzan, Lucas Lindsay, Junqiao Wu*, and Jie Yao*, Anomalous thermal transport in Eshelby twisted van der Waals nanowires, Nature Materials, in press (2024).
- Yufeng Wang, Ripeng Luo, Jian Chen, Xuefeng Zhou, Shanmin Wang, Junqiao Wu, Feiyu Kang, Kuang Yu, Bo Sun, Proton Quantum Tunneling Induces Anomalous Thermal Conductivity of Ice VII under Pressure, Phys. Rev. Lett., 132, 264101 (2024). (PDF)
- Wenjing Zheng, Jun Kang, Kaiyang Niu, Colin Ophus, Emory M. Chan, Peter A. Ercius, Lin-Wang Wang, Junqiao Wu, Haimei Zheng, Reversible Phase Transformations between Pb Nanocrystal and Viscous Liquid-Like Phase, Science Advances, 10, eadn6426 (2024). (PDF)
- Ke Shen, Qi Ren, Lu Zhao, Yu Qiu, Zihan Huang, Yongheng Li, Jiachen Li, Suyuan Yu, Jiawang Hong, Lin Xie, Bo Sun, Junqiao Wu, Feiyu Kang, Point defects enhance cross-plane thermal conductivity in graphite, submitted, (2024).
- K. M. Siddiqui, D. B. Durham, F. Cropp, F. Ji, S. Paiagua, C. Ophus, N. C. Andresen, L. Jin, J. Wu, S. Wang, X. Zhang, W. You, M. Murnane, M. Centurion, X. Wang, D. Slaughter, R. A. Kaindl, P. Musumeci, A. M. Minor, and D. Filippetto, Relativistic ultrafast electron diffraction at high repetition rates, Structural Dynamics, 10, 064302 (2023).
- Jiachen Li, Kaichen Dong, Tiancheng Zhang, Derick Tseng, Cheng Fang, Ruihan Guo, Jingang Li, Yujie Xu, Chaochao Dun, Jeffrey J. Urban, Tianzhen Hong, Costas P. Grigoropoulos, Ali Javey, Jie Yao, Junqiao Wu, Printable, emissivity-adaptive and albedo-optimized covering for year-round energy savings, Joule, 7, 2552 (2023).(PDF).
- Sudhanshu Shukla, Sinu Mathew, Hwan Sung Choe, Manjusha Chugh, Thomas D. Kuehne, Hossein Mirhosseini, Xiong Qihua, Junqiao Wu, Thirumalai Venkatesan, Thirumany Sritharan, Joel W. Ager, Charge Carrier Transport in Iron Pyrite Thin Films: Disorder Induced Variable Range Hopping, Journal of Physical Chemistry, 127, 18619 (2023).
- Kaichen Dong and Junqiao Wu, Radiative cooling, what's next? Next Energy, 1, 100003 (2023).
- Tiancheng Zhang, Kaichen Dong, Jiachen Li, Fanhao Meng, Jingang Li, Sai Munagavalasa, Costas P. Grigoropoulos, Junqiao Wu, and Jie Yao, Twisted moire photonic crystal enabled optical vortex generation through bound states in the continuum, Nature Communications, 14, 6014 (2023).
- Edy Cardona, Matthew Horton, Daniel Paulo-Wach, Anthony Salazar, Andre Palacios, James Chavez, Shaul Aloni, Junqiao Wu, Oscar Dubon, Vapor-liquid-solid growth of highly-mismatched semiconductor nanowires with high-fidelity van der Waals layer stacking, submitted, (2023).
- Jingang Li, Rundi Yang, Yoonsoo Rho, Penghong Ci, Matthew Eliceiri, Hee K. Park, Junqiao Wu, and Costas P. Grigoropoulos, Near-field ultrafast nanoscopy of carrier dynamics in semiconductor nanowires, Nano Lett., 23, 1445 (2023).
- Tsegereda K. Esatu, Hei Kam, Lars P. Tatum, Xiaoer Hu, Urmita Sikder, Sergio Almeida, Junqiao Wu, and Tsu-Jae King Liu, A reprogrammable MEM switch utilizing controlled contact welding, MEMS Conference, January 15 (2023).
- Penghong Ci, Yuzhou Zhao, Muhua Sun, Yoonsoo Rho, Yabin Chen, Costas P. Grigoropoulos, Song Jin, Xiaoguang Li, Junqiao Wu, Breaking rotational symmetry in supertwisted WS2 spirals via moire magnification of intrinsic heterostrain, Nano Lett., 22, 9027 (2022).(PDF)
- Lei Jin, Yin Shi, Frances I. Allen, Long-Qing Chen, Junqiao Wu, Probing the critical nucleus size in the metal-insulator phase transition of VO2, Phys. Rev. Lett., 129, 245701 (2022). (PDF). Selected as a "PRL Editor's Suggestion".
- Kaichen Dong, Derick Tseng, Jiachen Li, Sorren Warkander, Jie Yao, Junqiao Wu, Reducing temperature swing of space objects with temperature-adaptive solar or radiative coating, Cell Reports Physical Science, 3, 101066 (2022). (PDF)
- Danqing Wang, Kaichen Dong, Jingang Li, Costas Grigoropoulos, Jie Yao, Jin Hong and Junqiao Wu, Low-loss, geometry-invariant optical waveguides with near-zero-index materials, Nanophotonics, 11, 4747 (2022). (PDF)
- Chunqi Zheng, Robert E. Simpson, Kechao Tang, Yujie Ke, Arash Nemati, Qing Zhang, Guangwei Hu, Jinghua Teng, Joel K.W. Yang, Junqiao Wu, Cheng-Wei Qiu, Enabling Active Nanotechnologies by Phase Transition: From Electronics, Photonics to Thermotics, Chemical Reviews, 122, 15450 (2022). (PDF)
- Lu Zhao, Lijuan Zhang, Houfu Song, Hongda Du, Junqiao Wu, Feiyu Kang and Bo Sun, Incoherent phonon transport dominates heat conduction across van der Waals superlattices, Appl. Phys. Lett. , 121, 022201 (2022).
- Chen Zhang, Wei Lv, Sichen Gu, Danfeng, Zhang, Jiabin Ma, Han Zheng, Muyun Zheng, Ruitao Lv, Kuang Yu, Junqiao Wu, Xiaomin Wang, Feiyu Kang, Quan-Hong Yang, Nonflammable, localized high-concentration electrolyte towards a high-safety lithium metal battery, Energy Storage Materials, 52, 355 (2022).
- Yoonsoo Rho, Kyunghoon Lee, Letian Wang, Changhyun Ko, Yabin Chen, Eunpa Kim, Jiayun Pei, Jung Hwan Park, Alex Zettl, Junqiao Wu and Costas P. Grigoropoulos, A laser-assisted chlorination process for reversible writing of doping patterns in graphene, Nature Electronics, 5, 505, (2022).
- Qinshu Li, Fang Liu, Song Hu, Houfu Song, Susu Yang, Hailing Jiang, Tao Wang, Yee Kan Koh, Changying Zhao, Feiyu Kang, Junqiao Wu, Xiaokun Gu, Bo Sun, and Xinqiang Wang, Inelastic phonon transport across atomically sharp metal/semiconductor interfaces, Nature Commun., 13, 4901 (2022).
- Penghong Ci, Muhua Sun, Meenakshi Upadhyaya, Houfu Song, Lei Jin, Bo Sun, Matthew R. Jones, Joel Ager, Zlatan Aksamija, Junqiao Wu, Giant isotope effect of thermal conduction in silicon nanowires, Phys. Rev. Lett., 128, 085901 (2022). (PDF) LBNL news release is here.
- Sarah Warkander, Junqiao Wu, Transducerless time domain reflectance measurement of semiconductor thermal properties, J. Appl. Phys., 131, 025101 (2022). (PDF)
- Kechao Tang, Kaichen Dong, Jiachen Li, Madeleine P. Gordon, Finnegan G. Reichertz, Hyungjin Kim, Yoonsoo Rho, Qingjun Wang, Chang-Yu Lin, Costas P. Grigoropoulos, Ali Javey, Jeffrey J. Urban, Jie Yao, Ronnen Levinson, and Junqiao Wu, Temperature-adaptive radiative coating for all-season household thermal regulation, Science 374, 1504-1509 (2021). (PDF) LBNL and UC Berkeley news release is here.
- Sina Abedini Dereshgi, Maria Cristina Larciprete, Marco Centini, Akshay A. Murthy, Kechao Tang, Junqiao Wu, Vinayak P. Dravid, and Koray Aydin, Tuning of optical phonons in a-MoO3/VO2 multilayers, ACS Appl. Mater. & Inter. , 13, 48981 (2021).
- Kaichen Dong, Tiancheng Zhang, Jiachen Li, Qingjun Wang, Fuyi Yang, Yoonsoo Rho, Danqing Wang, Costas P. Grigoropoulos, Junqiao Wu, and Jie Yao, Flat bands in magic-angle bilayer photonic crystals at small twists, Phys. Rev. Lett., 126, 223601 (2021). (PDF) Selected as a "PRL Editor's Suggestion".
- Z. Gong , F. Yang , L. Wang, R. Chen, J. Wu, C. P. Grigoropoulos, J. Yao, Phase change materials in photonic devices, J. Appl. Phys. , 129, 030902 (2021). (PDF) (invited review)
- Run Hu, Wang Xi, Yida Liu, Kechao Tang, Jinlin Song, Xiaobing Luo, Junqiao Wu, and Cheng-Wei Qiu, Thermal Camouflaging Metamaterials, Materials Today, 45, 120 (2021). (invited review)
- Jiaman Liu, Jin Lei, Frances I. Allen, Yang Gao, Penghong Ci, Feiyu Kang, Junqiao Wu, Selective gas permeation in defect-engineered bilayer graphene, Nano Lett., 21, 2183 (2021). (PDF)
- Kechao Tang, Kaichen Dong, Christopher J. Nicolai, Ying Li, Jiachen Li, Shuai Lou, Cheng-Wei Qiu, David H. Raulet, Jie Yao, and Junqiao Wu, Milli-kelvin-resolved ambient thermography, Science Advances, 6, eabd8688 (2020).(PDF)
- Yang Gao, Xianqing Lin, Thomas Smart, Penghong Ci, Kenji Watanabe, Takashi Taniguchi, Raymond Jeanloz, Jun Ni, and Junqiao Wu, Band engineering of large-twist-angle graphene/h-BN moire superlattices with pressure, Phys. Rev. Lett., 125, 226403 (2020).(PDF)
- Xuewen Fu, Francesco Barantani, Simone Gargiulo, Ivan Madan, Gabriele Berruto, Thomas LaGrange, Lei Jin, Junqiao Wu, G. M. Vanacore, Fabrizio Carbone, Yimei Zhu, Nanoscale-femtosecond dielectric response of Mott insulators captured by two-colour near-field electron microscopy, Nature Commun., 11, 5770 (2020).
- Penghong Ci, Xuezeng Tian, Anthony Salazar, Kazutaka Eriguchi, Sarah Warkander, Kechao Tang, Jiaman Liu, Yabin Chen, Sefaattin Tongay, Wladek Walukiewicz, Jianwei Miao, Jun Kang, Oscar Dubon, Junqiao Wu, Chemical trends of deep levels in van der Waals crystals, Nature Commun., 11, 5373 (2020). (PDF)
- Tianxiang Nan, Yeonbae Lee, Shihao Zhuang, Zhongqiang Hu, James D. Clarkson, Xinjun Wang, Changhyun Ko, HwanSung Choe, Zuhaung Chen, David Budil, Junqiao Wu, Sayeef Salahuddin, G.P. Carman, Jiamian Hu, Nian Sun and Ramamoorthy Ramesh, Electric-field control of spin dynamics during magnetic phase transitions, Science Advances, 6, eabd2613 (2020).
- Lei Jin, Steven E. Zeltmann, Hwan Sung Choe, Huili Liu, Frances I. Allen, Andrew M. Minor, and Junqiao Wu, Disorder recovers the Wiedemann-Franz Law in metallic phase of VO2, Phys. Rev. B Rapid Commun., 102, 041120(R) (2020). (PDF)
- Huili Liu, Xiaoxia Yu, Kedi Wu, Yang Gao, Sefaattin Tongay, Ali Javey, Lidong Chen, Jiawang Hong and Junqiao Wu, Extreme in-plane thermal conductivity anisotropy in titanium trisulfide caused by heat-carrying optical phonons, Nano Lett., 20, 5221 (2020). (PDF)
- Feng Ke, Lingkong Zhang, Yabin Chen, Ketao Yin, Chenxu Wang, Yan-Kai Tzeng, Yu Lin, Hongliang Dong, Zhenxian Liu, John S. Tse, Wendy L. Mao, Junqiao Wu, and Bin Chen, Synthesis of Atomically Thin Hexagonal Diamond with Compression, Nano. Lett., 20, 5916 (2020).(PDF)
- Huili Liu, Chao Yang, Bin Wei, Lei Jin, Ahmet Alatas, Ayman Said, Sefaattin Tongay, Fan Yang, Ali Javey, Jiawang Hong and Junqiao Wu, Anomalously suppressed thermal conduction by electron-phonon coupling in tantalum disulfide, Adv. Sci., 7, 1902071 (2020).(PDF)
- Kechao Tang, Xi Wang, Kaichen Dong, Ying Li, Jiachen Li, Bo Sun, Xiang Zhang, Chris Dames, Chengwei Qiu, Jie Yao and Junqiao Wu, A Thermal Radiation Modulation Platform by Emissivity Engineering with Graded Metal-Insulator Transition, Adv. Mater., 1907071 (2020). (PDF). UC Berkeley news release is here.
- Jia Lin, Hong Chen, Yang Gao, Yao Cai, Ahmed Etman, Joohoon Kang, Teng Lei, Zhenni Lin, Li Na Quan, Qiao Kong, Matthew Sherburne, Mark Asta, Junliang Sun, Michael F. Toney, Junqiao Wu*, Peidong Yang*, Pressure induced semiconductor to metal phase transition of a charge ordered indium halide perovskite, PNAS, 116, 07576 (2019). (PDF)
- Chen Zhang, Ruiyang Lyu, Wei Lv, Huan Li, Wei Jiang, Jia Li, Sichen Gu, Guangmin Zhou, Zhijia Huang, Yunbo Zhang, Junqiao Wu, Quan-Hong Yang, Feiyu Kang, A lightweight 3D Cu nanowire network with phosphidation gradient as current collector for high-density nucleation and stable deposition of lithium , Adv. Mater., 31, 1904991 (2019).
- Sara Fathipour, Sergio Fabian Almeida, Alice Ye, Bivas Saha, Farnaz Niroui, Tsu-Jae King Liu, and Junqiao Wu, Reducing Adhesion Energy of Nano-Electro-Mechanical Relay Contacts by Self-Assembled Perfluoro(2,3-Dimethylbutan-2-ol) Coating, AIP Advances, 9, 055329 (2019). (PDF)
- Feng Ke, Lingkong Zhang, Yabin Chen, Ketao Yin, Chenxu Wang, Wanquan Zhu, Hailun Wang, Yu Lin, Zhenxian Liu, John S. Tse, Guilin Wu, Rodney C Ewing, Junqiao Wu, Ho-Kwang Mao & Bin Chen, Large Bandgap of Pressurized Trilayer Graphene, PNAS, 116, 9186 (2019). (PDF)
- Hwan Sung Choe, Jiachen Li, Wenjing Zheng, Jaejun Lee, Joonki Suh, Frances I. Allen, Huili Liu, Heon-Jin Choi, Wladek Walukiewicz, Haimei Zheng, and Junqiao Wu, Anomalously high electronic thermal conductivity and Lorenz ratio in Bi2Te3 nanoribbons far from bipolar condition, Appl. Phys. Lett., 114, 152101 (2019). (PDF)
- Hwan Sung Choe, Radhika Prabhakar, Geoff Wehmeyer, Frances Allen, Woochul Lee, Ying Li, Peidong Yang, Cheng-Wei Qiu, Chris Dames, Mary Scott, Je-Hyeong Bahk, and Junqiao Wu, Ion written micro-thermotics: a platform to program microscale thermal metamaterials, Nano Lett., 19, 3830 (2019). (PDF)
- Wenjing Zheng, Yan Zhang, Kaiyang Niu, Tao Liu, Karen Bustillo, Dennis Nordlund, Junqiao Wu, Haimei Zheng, and Xiwen Du, Selective Nitrogen Doping Graphene Oxide by Laser Irradiation for Enhanced Hydrogen Evolution Activity, ChemComm, 54, 13726 (2018).
- Jing Wu, Yabin Chen, Junqiao Wu, Kedar Hippalgaonkar, Perspectives on Thermoelectricity in Layered and Two-Dimensional Materials, Adv. Elec. Mater., 1800248 (2018). (invited review)
- Joonki Suh, Tarapada Sarkar, Hwan Sung Choe, Joonsuk Park, T. Venkatesan, Junqiao Wu, Compensated thermal conductivity of metallically conductive Ta-doped TiO2, Appl. Phys. Lett., 113, 022103 (2018). (PDF)
- Kai Liu, Sangwook Lee, Shan Yang, Olivier Delaire, Junqiao Wu, Recent progress on physics and applications of VO2, Materials Today, 21, 875 (2018). (invited review) (PDF)
- Yabin Chen, Chaoyu Chen, Robert Kealhofer, Huili Liu, Zhiquan Yuan, Lili Jiang, Joonki Suh, Joonsuk Park, Changhyun Ko, Hwang Sung Choe, Jose Avila, Mianzeng Zhong, Zhongming Wei, Jingbo Li, Shushen Li, Hongjun Gao, Yunqi Liu, James Analytis, Qinglin Xia*, Maria C. Asensio*, Junqiao Wu*, Black Arsenic: A Layered Semiconductor with Extreme in-plane Anisotropy, Adv. Mater., 1800754 (2018). (PDF)
- Joonki Suh, Teck Leong Tan, Weijie Zhao, Joonsuk Park, Der-Yuh Lin, Tae-Eon Park, Jonghwan Kim, Chenhao Jin, Nihit Saigal, Sandip Ghosh, Zicong Marvin Wong, Yabin Chen, Feng Wang, Wladyslaw Walukiewicz, Goki Eda & Junqiao Wu, Restructuring stacking order and electronic bands of MoS2 by delocalized dopant wavefunction, Nature Commun., 9, 199 (2018). (PDF)
- Benjamin Osoba, Bivas Saha, Sergio Almeida, Jatin Patil, Laura Brandt, Maurice Roots, Edgar Acosta, Junqiao Wu, Tsu-Jae King Liu, Variability Study for Low-Voltage MEM Relay Operation, IEEE Transactions on Electron Devices, 65, 1529 (2018).
- Xi Wang, Kaichen Dong, Hwan Sung Choe, Huili Liu, Shuai Lou, Hans A. Bechtel, Kyle B. Tom, Zheng You, Junqiao Wu, Jie Yao, Multifunctional micro-electro-opto-mechanical platforms with giant modulation depth, Nano Lett., 18, 1637 (2018). (PDF)
- Kaichen Dong, Hwan Sung Choe, Xi Wang, Huili Liu, Bivas Saha, Changhyun Ko, Yang Deng, Kyle Tom, Shuai Lou, Zheng You, Jie Yao, Junqiao Wu, 0.2-Volt microelectromechanical switch enabled by a phase transition, Small, 14, 1703621 (2018). (PDF). Cover highlight.
- Kaichen Dong, Sukjoon Hong, Yang Deng, He Ma, Jiachen Li, Xi Wang, Junyeob Yeo, Letian Wang, Shuai Lou, Kyle B. Tom, Kai Liu, Zheng You, Yang Wei, Costas P. Grigoropoulos, Jie Yao*, Junqiao Wu*, A lithography-free and field-programmable photonic meta-canvas, Adv. Mater., 30, 1703878 (2018). (PDF) UC Berkeley news release is here. Adv. Mater. back cover highlight.
- Geoff Wehmeyer, Christian Monachon, Tomohide Yabuki, Junqiao Wu* and Chris Dames*, Thermal Diodes, Regulators, and Switches: Physical Mechanisms and Potential Applications, Applied Physics Review, 4, 041304 (2017). (Invited Review)(PDF)
- Huili Liu, Hwan Sung Choe, Yabin Chen, Joonki Suh, Changhyun Ko, Sefaattin Tongay and Junqiao Wu, Variable range hopping electric and thermoelectric transport in anisotropic black phosphorus, Appl. Phys. Lett., 111, 102101 (2017). (PDF)
- Penghong Ci, Yabin Chen, Jun Kang, Ryuji Suzuki, Hwan Sung Choe, Joonki Suh, Changhyun Ko, Taegyun Park, Ke Shen, Yoshihiro Iwasa, Sefaattin Tongay, Joel W. Ager III, Lin-Wang Wang and Junqiao Wu, Quantifying van der Waals interactions in layered transition metal dichalcogenides from pressure-enhanced valence band splitting, Nano Lett., 17, 4982 (2017). (PDF)
- Yabin Chen, Shuai Zhang, Feng Ke, Changhyun Ko,Sangwook Lee, Kai Liu, Bin Chen, Joel Ager III, Raymond Jeanloz, Volker Eyert, Junqiao Wu, Temperature-Pressure phase diagram of vanadium dioxide, Nano Lett., 17, 2512 (2017). (PDF)
- Steven G. Drapcho, Jonghwan Kim, Xiaoping Hong, Chenhao Jin, Sufei Shi, Sefaattin Tongay, Junqiao Wu, Feng Wang, Apparent Breakdown of Raman Selection Rule at Valley Exciton Resonances in Monolayer MoS2, Phys. Rev. B, 95, 165417 (2017).
- Sangwook Lee*, Kedar Hippalgaonkar*, Fan Yang*, Jiawang Hong*, Changhyun Ko, Joonki Suh, Kai Liu, Kevin Wang, Jeffrey J. Urban, Xiang Zhang, Chris Dames, Sean A. Hartnoll, Olivier Delaire*, Junqiao Wu*, Anomalously low electronic thermal conductivity in metallic vanadium dioxide, Science, 355, 371 (2017). (PDF) LBNL news release, and also highlighted by https://science.energy.gov/.
- Nicholas J. Borys, Edward S. Barnard, Shiyuan Gao, Wei Bao, Sefaatin Tongay, Changhyun Ko, Joonki Suh, Alex Weber-Bargioni, Junqiao Wu, Li Yang, and P. James Schuck, Anomalous above-gap photoexcitations and optical signatures of localized charge puddles in monolayer molybdenum disulfide, ACS Nano, 11, 2115 (2017). (PDF)
- Hwan Sung Choe, Joonki Suh, Changhyun Ko, Sangwook Lee, Kaichen Dong, Joonsuk Park, Yeonbae Lee, Kevin Wang and Junqiao Wu, Enhancing Modulation of Thermal Conduction in Vanadium Dioxide Thin Film by Nanostructured Nanogaps, Sci. Rep., 7, 7131 (2017). (PDF)
- Bivas Saha, Alexis Peschot, Benjamin Osoba, Changhyun Ko, Tsu-Jae King Liu and Junqiao Wu, Reduction of Adhesion Energy on NEM Relay Metals by Surface Engineering, APL Materials, 5, 036103 (2017). (PDF)
- Chenhao Jin, Jonghwan Kim, Joonki Suh, Zhiwen Shi, Bin Chen, Xi Fan, Matthew Kam, Kenji Watanabe, Takashi Taniguchi, Sefaattin Tongay, Junqiao Wu, Feng Wang, Interlayer Electron-Phonon Coupling in WSe2/hBN Heterostructures, Nature Phys., 13, 127 (2017). (PDF).
- Yabin Chen, Feng Ke, Penghong Ci, Changhyun Ko, Taegyun Park, Sahar Sareminaeini, Huili Liu, Joonki Suh, Lane W. Martin, Joel W. Ager, Bin Chen, Junqiao Wu, Pressurizing Field-Effect Transistor of Few-Layer MoS2 in a Diamond Anvil Cell, Nano Lett., 17, 194 (2017). (PDF).
- Chenhao Jin, Jonghwan Kim, Kedi Wu, Bin Chen, Edward S. Barnard, Joonki Suh, Zhiwen Shi, Steven G. Drapcho, Junqiao Wu, P. James Schuck, Sefaattin Tongay, Feng Wang, On optical dipole moment and radiative recombination lifetime of excitons in WSe2, Adv. Funct. Mater., 27, 1601741 (2017).
- Benjamin Osoba, Bivas Saha, Liam Dougherty, Jane Edgington, Chuang Qian, Farnaz Niroui, Jeffrey H. Lang, Vladimir Bulovic, Junqiao Wu, Tsu-Jae King Liu, Sub-50 mV NEM Relay Operation Enabled by Self-Assembled Molecular Coating, IEDM (IEEE International Electron Devices Meeting), Dec. 7 (2016), San Francisco. (PDF).
- Yabin Chen, Shuai Zhang, Weiwei Gao, Feng Ke, Jinyuan Yan, Bivas Saha, Changhyun Ko, Joonki Suh, Bin Chen, Joel W. Ager III, Wladyslaw Walukiewicz, Raymond Jeanloz, Junqiao Wu, Pressure-induced structural transition and phase diagram of CdxZn1-xO alloys, Appl. Phys. Lett., 108, 152105 (2016). (PDF).
- Mauro Brotons-Gisbert, Daniel Andres-Penares, Joonki Suh, Francisco Hidalgo, Rafael Abargues, Pedro J. Rodriguez-Canto, Alfredo Segura, Ana Cros, Enric Canadell, Pablo Ordejon, Junqiao Wu, Juan P. Martinez-Pastor, Juan F. Sanchez-Royo, Nanotexturing to enhance photoluminescent response of a two-dimensional semiconductor with highly tunable band gap, Nano Lett., 16, 3221(2016). (PDF).
- Jaehyeon Kim, Jonghoon Kim, Muhammad Ejaz Khan, Jae-Hyeon Ko, Joonki Suh, Junqiao Wu, Yong-Hyun Kim, Jeong Young Park, and Ho-Ki Lyeo, Control of heat transport at graphene-metal interfaces with modified flexural phonons, Sci. Rep., 6, 34428 (2016).
- Jiwei Hou, Xi Wang, Deyi Fu, Changhyun Ko, Yabin Chen, Sangwook Lee, Kevin X. Wang, Seffattin Tongay, Jie Yao, Kai Liu, Junqiao Wu, Modulating Photoluminescence of Monolayer Molybdenum Disulfide by Phase Transition in Active Substrates, Small, 12, 3976 (2016). (PDF).
- Kaichen Dong, Shuai Lou, Hwan Sung Choe, Kai Liu, Zheng You, Jie Yao, Junqiao Wu, Stress compensation for arbitrary curvature control in vanadium dioxide phase transition actuators, Appl. Phys. Lett., 109, 023504(2016). (PDF).
- Kai Liu, Junqiao Wu, Mechanical properties of two-dimensional materials and heterostructures, J. Mater. Res., 31, 832 (2016). Invited review. (PDF).
- E. Kim, C. Ko, K. Kim, Y. Chen, J. Suh, S-g. Ryu, S. Tongay, J. Wu and C. P. Grigoropoulos, Site-specific doping of ultra-thin metal dichalcogenides with laser-assisted local reaction, Adv. Mater., 28, 341 (2016). (PDF). Adv. Mater. back cover highlight.
- Jong Hun Kim, Deyi Fu, Sangku Kwon, Kai Liu, Junqiao Wu and Jeong Young Park, Crossing the thermal lubricity and electronic effects in friction: vanadium dioxide under metal-insulator transition, Adv. Mater. Int., 3, 1500388 (2016). (PDF). Adv. Mater. Int. cover highlight.
- Jose J. Fonseca, Sefaattin Tongay, Mehmet Topsakal, Alexander V. Luce, Changyun Ko, Junqiao Wu, Oscar D. Dubon, Bandgap Restructuring of the Layered Semiconductor Gallium Telluride in Air, Adv. Mater., 28, 6465 (2016). (PDF).
- Wen Fan*, Xi Zhu*, Feng Ke, Yabin Chen, Kaichen Dong, Jie Ji, Bin Chen, Sefaattin Tongay, Joel W. Ager, Kai Liu, Haibin Su, and Junqiao Wu, Vibrational spectrum renormalization in two-dimensional heterostructures by enforced interlayer coupling, Phys. Rev. B Rapid Commun., 92, 241408(R)(2015). (PDF).
- Tae-Eon Park, Joonki Suh, Dong-Ge Seo, Der-Yuh Lin, Heon-Jin Choi, Junqiao Wu, Chaun Jang, Joonyeon Chang, Hopping conduction in p-type MoS2 near the critical regime of the metal-insulator transition, Appl. Phys. Lett., 107, 223107 (2015). (PDF).
- Sangwook Lee, Fan Yang, Joonki Suh, Sijie Yang, Yeonbae Lee, Guo Li, Hwan Sung Choe, Aslihan Suslu, Yabin Chen, Changhyun Ko, Joonsuk Park, Kai Liu, Jingbo Li, Kedar Hippalgaonkar, Jeffrey J. Urban, Sefaattin Tongay, Junqiao Wu, Anisotropic in-plane thermal conductivity of black phosphorus nanoribbons at temperatures higher than 100K, Nature Commun., 6, 8573 (2015). (PDF). LBNL News release is here .
- Kai Liu, Cheng-Lun Hsin, Deyi Fu, Joonki Suh, Sefaattin Tongay, Michelle Chen, Yinghui Sun, Aiming Yan, Joonsuk Park, Kin M. Yu, Wenli Guo, Haimei Zheng, Daryl Chrzan, Junqiao Wu, Self-passivation of point defects: effects of high-energy particle irradiation on elastic modulus of multilayer graphene, Adv. Mater., 27, 6841 (2015). (PDF).
- Joonki Suh*, Kin Man Yu*, Deyi Fu, Xinyu Liu, Jason Chee, Chun-Hao Huang, Jian Zhou, Fan Yang, Jin Fan, David J. Smith, Yong-Hang Zhang, Jacek K. Furdyna, Christopher Dames, Wladyslaw Walukiewicz, Junqiao Wu, Simultaneous enhancement of electrical conductivity and thermopower in Bi2Te3 by native defects, Adv. Mater., 27, 3681 (2015). (PDF). LBNL News release is here .
- Hasan Kocer, Serkan Butun, Edgar Palacios, Zizhuo Liu, Sefaattin Tongay, Deyi Fu, Kevin Wang, Junqiao Wu and Koray Aydin, Thermal tuning of infrared resonant absorbers based on hybrid gold-VO2 nanostructures, Appl. Phys. Lett., 106, 161104 (2015). (PDF)
- Wei Bao, Nicholas J. Borys, Changhyun Ko, Joonki Suh, Wen Fan, Andrew Thron, Yingjie Zhang, Alexander Buyannin, Jie Zhang, Stefano Cabrini, Alexander Weber-Bargioni, Sefaattin Tongay, Shaul Aloni, D. Frank Ogletree, Junqiao Wu, Miquel B. Salmeron, P. James Schuck, Visualizing nanoscale excitonic relaxation properties of disordered edges and grain boundaries in monolayer molybdenum disulfide, Nature Commun., 6, 7993 (2015). (PDF). LBNL News release is here .
- Mahmut Tosun, Deyi Fu, Sujay B. Desai, Changhyun Ko, Jeong Seuk Kang, Der-Hsien Lien, Mohammad Najmzadeh, Sefaattin Tongay, Junqiao Wu, Ali Javey, MoS2 Heterojunctions by Thickness Modulation, Sci. Rep., 5, 10990 (2015).
- Hasan Kocer, Serkan Butun, Edgar Palacios, Zizhuo Liu, Sefaattin Tongay, Deyi Fu, Kevin Wang, Junqiao Wu and Koray Aydin, Intensity tunable infrared broadband absorbers based on VO2 phase transition using planar layered thin films, Sci. Rep., 5, 13384(2015).
- Chun Cheng, Deyi Fu, Kai Liu, Hua Guo, Shuigang Xu, Sang-Gil Ryu, Otto Ho, Jian Zhou, Wen Fan, Wei Bao, Miquel Salmeron, Ning Wang, Costas P. Grigoropoulos, and Junqiao Wu, Directly metering light absorption and heat transfer in single nanowires using metal-insulator transition, Adv. Opt. Mater., 3, 336 (2015). (PDF)
- Ligang Bai, Quan Li, Serena Corr, Yue Meng, Changyong Park, Stanislav V. Sinogeikin, Junqiao Wu, Guoyin Shen, Pressure-induced phase transitions and metallization in VO2, Phys. Rev. B, 91, 104110 (2015). (PDF)
- Yeonbae Lee, Z. Q. Liu, J. T. Heron, J. D. Clarkson, J. Hong, M. D. Biegalski, U. Aschauer, S. L. Hsu, C. Ko, M. E. Nowakowski, J. Wu, H. M. Christen, S. Salahuddin, J. B. Bokor, N. A. Spaldin, D. G. Schlom, R. Ramesh, Large resistivity modulation in mixed-phase metallic systems, Nature Commun., 6, 5959 (2015). (PDF)
- Joonki Suh, Tae-Eon Park, Der-Yuh Lin, Deyi Fu, Joonsuk Park, Hee Joon Jung, Yabin Chen, Changhyun Ko, Chaun Jang, Yinghui Sun, Robert Sinclair, Joonyeon Chang, Sefaattin Tongay, Junqiao Wu, Doping against the native propensity of MoS2: degenerate hole doping by cation substitution, Nano Lett., 14, 6976 (2014).(PDF) See news release at Nanotechweb.org.
- Kai Liu, Qimin Yan, Michelle Chen, Wen Fan, Yinghui Sun, Joonki Suh, Deyi Fu, Sangwook Lee, Jian Zhou, Sefaattin, Tongay, Jie Ji, Jeffrey B. Neaton, Junqiao Wu, Elastic Properties of Chemical-Vapor-Deposited Monolayer MoS2, WS2, and Their Bilayer Heterostructures, Nano Lett., 14, 5097 (2014). (PDF) See news release at Nanotechweb.org.
- H. Guo, M. I. Khan, C. Cheng, W. Fan, C. Dames, J. Wu and A. M. Minor, VO2 nanowire-based microthermometer for quantitative evaluation of electron beam heating, Nature Commun., 5, 4986 (2014).(PDF)
- Yinghui Sun, K. Liu, X. Hong, M. Chen, J. Kim, S. Shi, J. Wu, A. Zettl, F. Wang, Probing Local Strain at MX2-Metal Boundaries with Surface Plasmon Enhanced Raman Scattering, Nano Lett., 14, 5329 (2014). (PDF)
- Sefaattin Tongay*, Wen Fan*, Jun Kang, Joonsuk Park, Unsal Koldemir, Joonki Suh, Deepa S. Narang, Kai Liu, Jie Ji, Jingbo Li, Robert Sinclair, and Junqiao Wu, Tuning Interlayer Coupling in Large-area Heterostructures with CVD-grown MoS2 and WS2 monolayers, Nano Lett., 14, 3185-3190(2014). (PDF)
- Tela Favaloro*, Joonki Suh*, Bjorn Vermeersch, Kai Liu, Yijia Gu, Long-Qing Chen, Kevin X. Wang, Junqiao Wu, Ali Shakouri, Direct observation of nanoscale Peltier and Joule effects at metal-insulator domain walls in vanadium dioxide nanobeams, Nano Lett., 14, 2394(2014). (PDF)
- Zhiwen Shi*, Chenhao Jin*, Wei Yang, Long Ju, Jason Horng, Xiaobo Lu, Hans Bechtel, Michael C. Martin, Deyi Fu, Junqiao Wu, Kenji Watanabe, Takashi Taniguchi, Xuedong Bai, Enge Wang, Guangyu Zhang & Feng Wang, Observation of Pseudospin-mixing Potential in Graphene/Boron Nitride Moire Superlattice, Nature Physics, 10, 743 (2014). (PDF)
- Joonki Suh, Deyi Fu, Xinyu Liu, Jacek K. Furdyna, Kin Man Yu, Wladyslaw Walukiewicz, and Junqiao Wu, Fermi-level stabilization in topological insulators Bi2Se3 and Bi2Te3: origin of the surface electron gas, Phys. Rev. B, 89, 115307 (2014). (PDF)
- Sefaattin Tongay, Hasan Sahin, Changhyun Ko, Alex Luce, Wen Fan, Kai Liu,Jian Zhou, Ying-Sheng Huang, Ching-Hwa Ho, Jinyuan Yan, D. Frank Ogletree, Shaul Aloni, Jie Ji, Shushen Li, Jingbo Li, F. M. Peeters, and Junqiao Wu, Monolayer behaviour in bulk ReS2 due to electronic and vibrational decoupling, Nature Commun., 5, 3252 (2014). (PDF) LBNL news release.
- Jia Zhu, Kedar Hippalgaonkar, Sheng Shen, Kevin Wang, Junqiao Wu, Xiaobo Yin, Arun Majumdar and Xiang Zhang, Temperature-Gated Thermal Rectifier for Active Heat Flow Control, Nano Lett., 14, 4867-4872 (2014). (PDF)
- Sefaattin Tongay, Deepa S. Narang, Jun Kang, Wen Fan, Changhyun Ko, Alexander V. Luce, Kevin X. Wang, Joonki Suh, K. D. Patel, V. M. Pathak, Jingbo Li, and Junqiao Wu, Two-dimensional semiconductor alloys: monolayer Mo1-xWxSe2, Appl. Phys. Lett., 104, 012101 (2014). (PDF) APL cover highlight.
- Priyank V. Kumar, Neelkanth M. Bardhan, Sefaattin Tongay, Junqiao Wu, Angela M. Belcher and Jeffrey C. Grossman, Scalable Enhancement of Graphene Oxide Properties by Thermally Driven Phase Transformation. Nature Chemistry, 6, 151-158 (2014). (PDF).
- Kai Liu, Chun Cheng, Joonki Suh, Robert Tang-Kong, Deyi Fu,Sangwook Lee, Jian Zhou, Leon O. Chua, Junqiao Wu, Powerful, Multifunctional Torsional Micro Muscles Activated by Phase Transition, Adv. Mater. 26, 1746-1750 (2014). (PDF) LBNL news release.
- Jong-Hun Kim, Jinheui Hwang, Joonki Suh, Sefaattin Tongay, Sangku Kwon, C. C. Hwang, Junqiao Wu, and Jeong Young Park, Work Function Engineering of CVD Graphene by Atomic scale Defects Generated with alpha-beam Irradiation, Appl. Phys. Lett., 103, 171604 (2013). (PDF)
- Chitraleema Chakraborty, Pritesh Parikh, T. S. Abhilash, Shamashis Sengupta, Chun Cheng, Junqiao Wu, and Mandar M. Deshmukh, Dynamically tracking the strain across the metal-insulator transition in VO2 measured using electromechanical resonators, Nano Lett., 13, 4685 (2013). (PDF)
- Deyi Fu, Jian Zhou, Sefaattin Tongay, Kai Liu, Wen Fan, Tsu-Jae King Liu and Junqiao Wu, Mechanically Modulated Tunneling Resistance in Monolayer MoS2, Appl. Phys. Lett., 103, 183105 (2013). (PDF)
- Sefaattin Tongay*, Joonki Suh*, Can Ataca, Fan Wen, Alexander Luce, Jeong Seuk Kang, Jonathan Liu, Changhyun Ko, Jian Zhou, Jingbo Li, Jeffrey C. Grossman and Junqiao Wu, Defects activated photoluminescence in two-dimensional semiconductors: interplay between bound, charged, and free excitons, Sci. Rep., 3, 2657 (2013). (PDF) Also highlighted by Nanotechweb.org.
- C. L. Hsin*, M. C. Wingert*, C. W. Huang, H. Guo, H.S. Teng, J. Suh, K. Wang, J. Wu, W. W. Wu, R. Chen, Phase Transformation and Thermoelectric Properties of Bismuth-Telluride Nanowires, Nanoscale, 5, 4669 (2013). (PDF)
- J. Kang, S. Tongay, J. Li and J. Wu, Two-dimensional Semiconductor Alloys: Stability and Band Bowing, J. Appl. Phys., 113, 143703 (2013). (PDF)
- H. Sahin, S. Tongay, S. Horzum, W. Fan, J. Zhou, J. Li, J. Wu, and F. M. Peeters, Anomalous Raman Spectrum and Dimensionality Effects in WSe2, Phys. Rev. B, 87, 165409 (2013). (PDF)
- Hua Guo , Kevin Wang , Yu Deng , Yunje Oh , S.A. Syed Asif , Oden L Warren , Zhiwei Shan , Junqiao Wu and A. M. Minor, Nanomechanical actuation from phase transitions in individual VO2 micro-beams, Appl. Phys. Lett., 102, 231909 (2013). (PDF)
- Xiuqing Meng, Sefaattin Tongay, Jun Kang, Zhanghui Chen, Fengmin Wu, Shu-Shen Li, Jian-Bai Xia, Jingbo Li and Junqiao Wu, Stable p- and n-type doping of few-layer graphene/graphite, Carbon, 57, 507 (2013). (PDF)
- Sefaattin Tongay, Jian Zhou, Can Ataca, Jonathan Liu, Jeong Seuk Kang, Tyler S. Matthews, Long You, Jingbo Li, Jeffrey C. Grossman and Junqiao Wu, Broad-range modulation of light emission in two-dimensional semiconductors by molecular physi-sorption gating, Nano Lett., 13, 2831 (2013). (PDF)
- Sangwook Lee, Chun Cheng, Hua Guo, Kedar Hippalgaonkar, Kevin Wang, Joonki Suh, Kai Liu, and Junqiao Wu, Axially Engineered Metal-Insulator Phase Transition by Graded Doping VO2 Nanowires, J. Am. Chem. Soc., 135, 4850 (2013). (PDF)
- Deyi Fu*, Kai Liu*, Tao Tao, Kelvin Lo, Chun Cheng, Bin Liu, Rong Zhang, Hans Bechtel, Junqiao Wu, Comprehensive Study of the Metal-Insulator Transition in Pulsed Laser Deposited Epitaxial VO2 Thin Films, J. Appl. Phys., 113, 043707 (2013). (PDF)
- Kevin X. Wang, Chun Cheng, Edy Cardona, Jingyang Guan, Kai Liu, Junqiao Wu, Performance limits of micro-actuation with vanadium dioxide as a solid engine, ACS Nano, 7, 2266 (2013). (PDF)
- Jun Kang, Sefaattin Tongay, Jian Zhou, Jingbo Li, and Junqiao Wu, Band offsets and Heterostructures of Two-Dimensional Semiconductors, Appl. Phys. Lett., 102, 012111 (2013). (PDF)
- T. Tong, D. Fu, A. X. Levander, W. J. Schaff, B. N. Pantha, B. Liu, R. Zhang, J. Y. Lin, H. X. Jiang, J. Wu, and David. G. Cahill, Suppression of thermal conductivity in InGaN alloys by nanometer-scale disorder, Appl. Phys. Lett., 102, 121906 (2013). (PDF)
- Kai Liu, Chun Cheng, Zhenting Cheng, Kevin Wang, Ramamoorthy Ramesh, Junqiao Wu, Giant-Amplitude, High-Work Density Microactuators with Phase Transition Activated Nanolayer Bimorphs, Nano Lett., 12, 6302 (2012). (PDF)
- Sefaattin Tongay, Jian Zhou, Can Ataca, Kelvin Lo, Jingbo Li, Jeffrey C. Grossman, and Junqiao Wu, Thermally driven crossover from indirect toward direct bandgap in 2D semiconductors: MoSe2 versus MoS2, Nano Lett., 12, 5576 (2012). (PDF) Also highlighted by Nature Nanotechnology.
- Zhensheng Tao, Tzong-Ru T. Han, Subhendra D. Mahanti, Phillip M. Duxbury, Fei Yuan, Chong-Yu Ruan*, Kevin Wang and Junqiao Wu, Decoupling of structural and electronic phase transitions in VO2, Phys. Rev. Lett., 109, 166406 (2012).(PDF)
- Sefaattin Tongay, Sima S. Varnoosfaderan, Bill R. Appleton, Junqiao Wu and Arthur F. Hebard, Magnetic Properties of MoS2: Existence of Ferromagnetism, Appl. Phys. Lett., 101, 123105 (2012).(PDF).
- Chun Cheng, Kai Liu, Bin Xiang, Joonki Suh, and Junqiao Wu, Ultra-long, Free-standing, Single-Crystalline Vanadium Dioxide Micro/ Nanowires Grown by Simple Thermal Evaporation, Appl. Phys. Lett., 100, 103111 (2012). (PDF).
- Kai Liu, Deyi Fu, Jinbo Cao, Joonki Suh, Kevin X. Wang, Chun Cheng, D. F. Ogletree, Hua Guo, Shamashis Sengupta, Asif Khan, Chun Wing Yeung, Sayeef Salahuddin, Mandar M. Deshmukh, Junqiao Wu, Dense Electron System from Gate-Controlled Surface Metal-Insulator Transition, Nano Lett., 12, 6272 (2012). (PDF)
- C. Miller, M. Triplett, J. Lammatao, J. Suh, D. Fu, J. Wu and D. Yu, Unusually Long Minority Carrier Lifetime and Metal-Insulator Band Offset in Vanadium Dioxide, Phys. Rev. B, 85, 085111 (2012). Highlighted as "Editor's Suggestion". (PDF).
- T. S. Matthews, C. Sawyer, D. F. Ogletree, Z. Liliental-Weber, D. C. Chrzan, and J. Wu, Large Reaction Rate Enhancement in Formation of Ultra-Thin AuSi Eutectic Layer, Phys. Rev. Lett., 108, 096102 (2012). (PDF)
- Jian Zhou, Morgan Trassin, Qing He, Nobumichi Tamura, Martin Kunz, Chun Cheng, Jinxing Zhang, Wen-I Liang, Jan Seidel, Cheng-Lun Hsin, and Junqiao Wu, Directed Assembly of Nano-scale Phase Variants in Highly Strained BiFeO3 Thin Films; J. Appl. Phys., 112, 064102 (2012). (PDF)
- J. M. Atkin, S. Berweger, E. Chavez, M. B. Raschke, J. Cao, W. Fan, J. Wu, Strain and temperature dependence of the insulating phases of VO2 near the metal-insulator transition; Phys. Rev. B, Rapid Commun., 85, 020101 (2012). (PDF)
- Chun Cheng, Wen Fan, Jinbo Cao, Sang-Gil Ryu, Jie Ji, Costas P. Grigoropoulos, and Junqiao Wu, Heat Transfer across the Interface between Nanoscale Solids and Gas, ACS Nano, 5, 10102 (2011). (PDF)
- A. X. Levander, S. V. Novikov, Z. Liliental-Weber, R. dos Reis, O. D. Dubon, J. Wu, C. T. Foxon, K. M. Yu, and W. Walukiewicz, Bipolar Doping of Mixed Phase GaN1-xAsx with High As content, J. Appl. Phys., 110, 093702 (2011). (PDF)
- A. X. Levander, S. V. Novikov, Z. Liliental-Weber, R. dos Reis, J. Denlinger, J. Wu, O. D. Dubon, C. T. Foxon, K. M. Yu, W. Walukiewicz, Growth and Transport Properties of p-type GaNBi Alloys, J. Mater. Res., 26, 2887 (2011). Invited Feature Article. (PDF)
- J. Yim, C. P. Grigoropoulos, and J. Wu, Mismatched Alloy Nanowires for Electronic Structure Tuning; Appl. Phys. Lett., 99, 233111(2011). (PDF)
- S. Sengupta, K. X. Wang, K. Liu, J. Wu, and M. Deshmukh, Field-effect modulation of conductance in VO2 transistors with HfO2 as gate dielectric; Appl. Phys. Lett., 99, 062114 (2011). (PDF)
- D. Fu, J. Zou, K. Wang, R. Zhang, D. Yu and J. Wu, Electrothermal Dynamics of Semiconductor Nanowires under Local Carrier Modulation; Nano Lett., 11, 3809 (2011). (PDF)
- Jan Seidel, Deyi Fu, Seung-Yeul Yang, Esther Alarcon-Llado, J. Wu, R. Ramesh, and J. W. Ager III, Efficient photovoltaic current generation at ferroelectric domain walls; Phys. Rev. Lett., 107, 126805 (2011). (PDF)
- Hua Guo*, Kai Chen*, Y. Oh, Kevin Wang, Catherine Dejoie, S.A. Syed Asif, O.L. Warren, Z. W. Shan, J. Wu and A.M. Minor, Mechanics and dynamics of the strain-induced M1-M2 structural phase transition in individual VO2 nanowires; Nano Lett., 11, 3207 (2011). (PDF)
- D. R. Khanal, A. X. Levander, K. M. Yu, Z. Liliental-Weber, J. Grandal, E. Calleja, and J. Wu, Decoupling Nanowire Mobilities Limited by Surface Scattering and Bulk Impurity Scattering; J. Appl. Phys., 110, 033705 (2011). (PDF)
- J. Wu, J. Cao, W. Q. Han, H.-C. Kim, A. Janotti, Ed., Functional Metal Oxide Nanostructures, Book published by Springer (2011). (Cover)
- A. X. Levander, Z. Liliental-Weber, M.E. Hawkridge, R. Broesler, S. V. Novikov, C. T. Foxon, O. D. Dubon, J. Wu, W. Walukiewicz, and K. M. Yu, Thermal Stability of Amorphous GaN1-xAsx Alloys; Appl. Phys. Lett., 98, 161902 (2011). (PDF)
- W. Fan*, J. Cao*, J. Seidel, Y. Gu, J. W. Yim, C. Barrett, K. M. Yu, J. Ji, R. Ramesh, L. Q. Chen and J. Wu, Large Kinetic Asymmetry in Twin Wall-Mediated Metal-Insulator Phase Transition; Phys. Rev. B, 83, 235102 (2011). Highlighted as "Editor's Suggestion". (PDF)
- A. X. Levander, T. Tong, K. M. Yu, J. Suh, D. Fu, R. Zhang, H. Lu, W. J. Schaff, O. Dubon, W. Walukiewicz, D. G. Cahill, and J. Wu, Effects of point defects on thermal and thermoelectric properties of InN; Appl. Phys. Lett., 98, 012108 (2011). (PDF)
- D. Fu, A. X. Levander, R. Zhang, J. W. Ager III and J. Wu, Electrothermally Driven Current Vortices in Inhomogeneous Bipolar Semiconductors; Phys. Rev. B, 84, 045205 (2011). Selected by APS as a featured story at "Physical Review Focus". (PDF)
- W. T. Liu, J. Cao, W. Fan, H. Zhao, M. C. Martin, J. Wu, and F. Wang, Intrinsic Infrared Properties of Vanadium Dioxide near the Insulator-Metal Transition; Nano Lett. 11, 466 (2011). (PDF)
- J. Cao and J. Wu, Strain Effects in Low-Dimensional Transition Metal Oxides; invited review, Materials Science and Engineering: R: Reports , 71, 35 (2011) (PDF)
- K. M. Yu, S. V. Novikov, R. Broesler, Z. Liliental-Weber, A. X. Levander, V. M. Kao, O. D. Dubon, J. Wu, W. Walukiewicz, and C. T. Foxon, Low-Gap Amorphous GaN1-xAsx Alloys Grown on Glass Substrate; Appl. Phys. Lett., 97, 101906 (2010). (PDF)
- J. Cao, Wen Fan, Qin Zhou, Erica Sheu, Aiwen Liu, C. Barrett, and J. Wu, Colossal Thermal-Mechanical Actuation via Phase Transition in VO2 Microcantilevers; J. Appl. Phys., 108, 083538(2010). (PDF)
- A. X. Levander, K. M. Yu, S. V. Novikov, A. Tseng, C. T. Foxon, O. D. Dubon, J. Wu and W.Walukiewicz, GaN1-xBix: Extremely Mismatched Semiconductor Alloys; Appl. Phys. Lett., 97, 141919 (2010). (PDF)
- Y. Gu, J. Cao, J. Wu, and Long-Qing Chen, Thermodynamics of strained vanadium dioxide single crystals; J. Appl. Phys., 108, 083517(2010). (PDF)
- J. Cao, Y. Gu, W. Fan, L. Q. Chen, D. F. Ogletree, K. Chen, N. Tamura, M. Kunz, C. Barrett, J. Seidel, and J. Wu, Extended Mapping and Exploration of the Vanadium Dioxide Stress-Temperature Phase Diagram; Nano Lett. 10, 2667 (2010). (PDF)
- G. F. Brown, J. W. Ager III, W. Walukiewicz and J. Wu, Finite Element Simulations of Compositionally Graded InGaN Solar Cells; Solar Energy Mater. & Solar Cells, 94, 478 (2010). (PDF)
- J.-H. Lee, J. Wu, and J. C. Grossman, Enhancing thermoelectric power factor with highly mismatched isoelectronic doping; Phys. Rev. Lett., 104, 016602 (2010) (PDF)
- G. F. Brown, V. Faifer, A. Pudov, S. Anikeev, E. Bykov, M. Contreras and J. Wu, Determination of the minority carrier diffusion length in compositionally graded Cu(In,Ga)Se2 solar cells using electron beam induced current; Appl. Phys. Lett. , 96, 022104 (2010). (PDF)
- J. Cao, W. Fan, K. Chen, N. Tamura, M. Kunz, V. Eyert and J. Wu, Constant threshold resistivity in the metal-insulator transition of VO2; Phys. Rev. B, Rapid Commun. , 82, 241101 (2010) (PDF)
- W. Fan, S. Huang, J. Cao, E. Ertekin, C. Barrett, D. R. Khanal, J. C. Grossman and J. Wu, Superelastic Metal-Insulator Phase Transition in Single-Crystal Vanadium Dioxide Nanobeams; Phys. Rev. B, Rapid Commun., 80, 241105(R) (2009). (PDF)
- J. W. L. Yim, D. Chen, G. F. Brown and J. Wu, Synthesis and ex-situ doping of ZnTe and ZnSe nanostructures with extreme aspect ratios; Nano Research, 2, 931 (2009). (PDF)
- D. R. Khanal, W. Walukiewicz, J. Grandal, E. Calleja, and J. Wu, Determining surface Fermi level pinning position of InN nanowires using electrolyte gating; Appl. Phys. Lett., 95, 173114 (2009). (PDF)
- J. Cao, E. Ertekin, V. Srinivasan, W. Fan, S. Huang, H. Zheng, J. W. L. Yim, D. R. Khanal, D. F. Ogletree, J. C. Grossman, and J. Wu, Strain engineering and one-dimensional organization of metal-insulator domains in single-crystal VO2 beams; Nature Nanotech., 4, 732 (2009). (cover highlight) (PDF)
- J. W. L. Yim, B. Xiang, and J. Wu, Sublimation of GeTe nanowires and evidence of its size effect studied by in situ TEM; J. Am. Chem. Soc., 131, 14526 (2009). (PDF)
- J. Cao*, W. Fan*, H. Zheng, and J. Wu, Thermoelectric Effect across the Metal-Insulator Domain Walls in VO2 Microbeams; Nano Lett., 9, 4001 (2009). (PDF)
- E. C. Garnett, Y. Tseng, D. R. Khanal, J. Wu, J. Bokor and P. Yang, Dopant Profiling and Surface Analysis of Silicon Nanowires Using Capacitance-Voltage Measurements, Nature Nanotech., 4, 311 (2009). (PDF)
- J. Wu, When Group III - Nitrides Go Infrared: New Properties and Perspectives; invited review, J. Appl. Phys., 106, 011101 (2009). (cover highlight) (PDF)
- G. F. Brown and J. Wu, Third Generation Photovoltaics; Laser and Photonics Reviews, 3, 394 (2009). (PDF)
- Z. Liliental-Weber, K. M. Yu, M. Hawkridge, S. Bedair, A.E. Berman, A. Emara, D. R. Khanal, J. Wu, J. Domagala, and J. Bak-Misiuk, Structural perfection of InGaN layersand its relation to photoluminescence; phys. stat. sol. (c) , 6, 2626 (2009). (PDF)
- J. W. Ager III, N. Miller, R. E. Jones, K. M. Yu, J. Wu, W. J. Schaff, and W. Walukiewicz, Mg-doped InN and InGaN - photoluminescence, capacitance-voltage and thermopower measurements; phys. stat. sol. (b) , 245, 873 (2008). (PDF)
- G. F. Brown, J. W. Ager, W. Walukiewicz, W. J. Schaff and J. Wu, Probing and Modulating Surface Electron Accumulation in InN by the Electrolyte Gated Hall Effect; Appl. Phys. Lett., 93, 262105 (2008). (PDF)
- J. W. L. Yim and J. Wu, Optical Properties of InN and Related Alloys; Book Chapter, Indium Nitride and Related Alloys, Edited by T. D. Veal, C. F. McConville and W. J. Schaff, Taylor & Francis (2008).
- D. R. Khanal and J. Wu, Gate Coupling and Charge Distribution in Nanowire Field Effect Transistors; Nano Lett., 7, 2778 (2007). (PDF)
- J. W. L. Yim, R. E. Jones, K. M. Yu, J. W. Ager III, W. Walukiewicz, W. J. Schaff and J. Wu, Effects of Surface States on Electrical Characteristics of InN and InGaN; Phys. Rev. B, Rapid Commun.. 76, 041303(R) (2007). (PDF)
- D. R. Khanal, Joanne W. L. Yim, W. Walukiewicz and J. Wu, Effects of Quantum Confinement on the Doping Limit of Semiconductor Nanowires; Nano Lett., 7, 1186 (2007). (PDF)
- K. Alberi, J. Wu, W. Walukiewicz, K. M. Yu. O. D. Dubon, S. P. Watkins, C. X. Wang, X. Liu, Y. J. Cho and J. Furdyna; Valence-Band Anticrossing in Mismatched III-V Semiconductor Alloys; Phys. Rev. B, 75, 045203 (2007). (PDF)
Conference proceedings and posters:
- We attend and present at MRS, APS, ACS, ICPS, and other conferences.
Patents:
- K. Liu, K. X. Wang and J. Wu, Vanadium Dioxide Micro Actuators, US patent filed (2012).
- W. Walukiewicz, K. M. Yu, J. Wu and W. J. Schaff, Broad Spectrum Solar Cells, US patent 7217882.
- W. Walukiewicz, K. M. Yu and J. Wu, Multiband Semiconductors for High-Efficiency Solar Cells, US patent 7709728.
Selected previous publications:
- J. Wu, Q. Gu, B. S. Guiton, L. Ouyang, N. de Leon, H. Park; Strain-induced Self Organization of Metal-Insulator Domains in Single-Crystalline VO2 nanobeams; Nano Lett., 6, 2313 (2006).(PDF)
- Q. Gu, A. Falk, J. Wu, L. Ouyang and H. Park; Current-Driven Phase Oscillation and Domain-Wall Propagation in WxV1-xO2 Nanobeams; Nano Lett., 7, 363 (2007).(PDF)
- D. Yu, J. Wu, Q. Gu and H. Park; Germanium Telluride Nanowires and Nanohelices with Memory Switching Behavior; J. Am. Chem. Soc., 128, 8148(2006).
- J. Wu, W. Walukiewicz, W. Shan, et. al.; Structure-Dependent Hydrostatic Deformation Potentials of Individual Single-Walled Carbon Nanotubes; Phys. Rev. Lett., 93, 017404 (2004).
- J. Wu, W. Q. Han, W. Walukiewicz, et. al.; Raman Spectroscopy and Time-resolved Photoluminescence of BN and BCN Nanotubes; Nano Lett., 4, 647 (2004).
- K. M. Yu, W. Walukiewicz, J. Wu, et. al.; Diluted II-VI Oxide Semiconductors with Multiple Band Gaps; Phys. Rev. Lett., 91, 246403 (2003). Led to a Multiband Solar Cell patent.
- J. Wu, W. Walukiewicz, K. M. Yu, et. al.; Superior Radiation Resistance of In1-xGaxN Alloys: a Full-Solar-Spectrum Photovoltaic Materials System; J. Appl. Phys., 94, 6477 (2003). Led to a Broad Band Solar Cell patent.
- H. T. Ng, B. Chen, J. Li, J. E. Han, M. Meyyappan, J. Wu, S. X. Li and E. E. Haller; Optical properties of single-crystalline ZnO nanowires on m-sapphire; Appl. Phys. Lett., 82, 2023 (2003).
- J. Wu, W. Walukiewicz, E. E. Haller; Band structure of highly mismatched semiconductor alloys: Coherent potential approximation; Phys. Rev. B, 65, 233210 (2002).
- J. Wu, W. Walukiewicz, K. M. Yu, et. al.; Effects of the Narrow Bandgap on the Properties of InN; Phys. Rev. B, Rapid Commun., 66, 201403 (2002).
- K. M. Yu, W. Walukiewicz, J. Wu, et. al.; Mutual Passivation of Electrically Active and Isoelectronic Impurities: Si doped GaNxAs1-x; Nature Mater., 1(3), 185 (2002).
- J. Wu, W. Walukiewicz, K. M. Yu, J. W. Ager, E. E. Haller, H. Lu, W. J. Schaff, Y. Saito, and Y. Nanishi; Unusual Properties of the Fundamental Bandgap of InN; Appl. Phys. Lett., 80, 3967 (2002). Received 1000+ citations, and is among the top 50 cited papers in Appl. Phys. Lett.'s 50 years of history.
- J. Wu, W. Walukiewicz, H. Lu, W. Schaff, et. al.; Small Bandgap Bowing in InxGa1-xN Alloys; Appl. Phys. Lett., 80, 4741 (2002).
- J. Wu and W. Walukiewicz; Band Gaps of InN and group III Nitride Alloys; invited review, Superlatt. and Microstruct., 34, 63(2003).
- J. Wu, W. Shan and W. Walukiewicz; Band Anticrossing Effects in Highly Mismatched Semiconductor Alloys; invited review, Semicond. Sci. Tech., 17, 860 (2002).
- W. Walukiewicz, W. Shan, J. Wu and K. M. Yu; Band Anticrossing in III-N-V Alloys: Theory and Experiments; book chapter, Physics and Applications of Dilute Nitrides, edited by I. A. Buyanova and W. M. Chen, Taylor & Francis, New York, (2003).
