Search Results - "Su-Huai Wei"

Self-Regulation Mechanism for Charged Point Defects in Hybrid Halide Perovskites by Walsh, Aron, Scanlon, David O., Chen, Shiyou, Gong, X. G., Wei, Su-Huai

“…Hybrid halide perovskites such as methylammonium lead iodide (CH3NH3PbI3) exhibit unusually low free‐carrier concentrations despite being processed at…”
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Van der Waals metal-semiconductor junction: Weak Fermi level pinning enables effective tuning of Schottky barrier by Liu, Yuanyue, Stradins, Paul, Wei, Su-Huai

“…Two-dimensional (2D) semiconductors have shown great potential for electronic and optoelectronic applications. However, their development is limited by a large…”
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Novel and Enhanced Optoelectronic Performances of Multilayer MoS2-WS2 Heterostructure Transistors by Huo, Nengjie, Kang, Jun, Wei, Zhongming, Li, Shu-Shen, Li, Jingbo, Wei, Su-Huai

“…Van der Waals heterostructures designed by assembling isolated two‐dimensional (2D) crystals have emerged as a new class of artificial materials with…”
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Stabilizing Perovskite Structures by Tuning Tolerance Factor: Formation of Formamidinium and Cesium Lead Iodide Solid-State Alloys by Li, Zhen, Yang, Mengjin, Park, Ji-Sang, Wei, Su-Huai, Berry, Joseph J, Zhu, Kai

“…Goldschmidt tolerance factor (t) is an empirical index for predicting stable crystal structures of perovskite materials. A t value between 0.8 and 1.0 is…”
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Piezophototronic Effect in Single-Atomic-Layer MoS2 for Strain-Gated Flexible Optoelectronics by Wu, Wenzhuo, Wang, Lei, Yu, Ruomeng, Liu, Yuanyue, Wei, Su-Huai, Hone, James, Wang, Zhong Lin

“…Strain‐gated flexible optoelectronics are reported based on monolayer MoS2. Utilizing the piezoelectric polarization created at the metal‐MoS2 interface to…”
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Hydrogenated Cs2AgBiBr6 for significantly improved efficiency of lead-free inorganic double perovskite solar cell by Zhang, Zeyu, Sun, Qingde, Lu, Yue, Lu, Feng, Mu, Xulin, Wei, Su-Huai, Sui, Manling

“…Development of lead-free inorganic perovskite material, such as Cs 2 AgBiBr 6 , is of great importance to solve the toxicity and stability issues of…”
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Perspective on the band structure engineering and doping control of transparent conducting materials by Cai, Xuefen, Wei, Su-Huai

“…Transparent conducting materials (TCMs), which combine high electrical conductivity and high optical transmission in the visible spectral range, are needed in…”
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Engineering Solar Cell Absorbers by Exploring the Band Alignment and Defect Disparity: The Case of Cu- and Ag-Based Kesterite Compounds by Yuan, Zhen-Kun, Chen, Shiyou, Xiang, Hongjun, Gong, Xin-Gao, Walsh, Aron, Park, Ji-Sang, Repins, Ingrid, Wei, Su-Huai

“…The development of kesterite Cu2ZnSn(S,Se)4 thin‐film solar cells is currently hindered by the large deficit of open‐circuit voltage (Voc), which results from…”
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Electron donation of non-oxide supports boosts O2 activation on nano-platinum catalysts by Gan, Tao, Yang, Jingxiu, Morris, David, Chu, Xuefeng, Zhang, Peng, Zhang, Wenxiang, Zou, Yongcun, Yan, Wenfu, Wei, Su-Huai, Liu, Gang

“…Activation of O 2 is a critical step in heterogeneous catalytic oxidation. Here, the concept of increased electron donors induced by nitrogen vacancy is…”
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Air Passivation of Chalcogen Vacancies in Two-Dimensional Semiconductors by Liu, Yuanyue, Stradins, Pauls, Wei, Su-Huai

“…Defects play important roles in semiconductors (SCs). Unlike those in bulk SCs, defects in two‐dimensional (2D) SCs are exposed to the surrounding environment,…”
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Classification of Lattice Defects in the Kesterite Cu2ZnSnS4 and Cu2ZnSnSe4 Earth-Abundant Solar Cell Absorbers by Chen, Shiyou, Walsh, Aron, Gong, Xin-Gao, Wei, Su-Huai

“…The kesterite‐structured semiconductors Cu2ZnSnS4 and Cu2ZnSnSe4 are drawing considerable attention recently as the active layers in earth‐abundant low‐cost…”
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Design of Lead-Free Inorganic Halide Perovskites for Solar Cells via Cation-Transmutation by Zhao, Xin-Gang, Yang, Ji-Hui, Fu, Yuhao, Yang, Dongwen, Xu, Qiaoling, Yu, Liping, Wei, Su-Huai, Zhang, Lijun

“…Hybrid organic–inorganic halide perovskites with the prototype material of CH3NH3PbI3 have recently attracted intense interest as low-cost and high-performance…”
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More Se Vacancies in Sb2Se3 under Se‐Rich Conditions: An Abnormal Behavior Induced by Defect‐Correlation in Compensated Compound Semiconductors by Huang, Menglin, Cai, Zenghua, Wang, Shanshan, Gong, Xin‐Gao, Wei, Su‐Huai, Chen, Shiyou

“…It was believed that the Se‐rich synthesis condition can suppress the formation of deep‐level donor defect VSe (selenium vacancy) in Sb2Se3 and is thus…”
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A Unified Understanding of the Thickness-Dependent Bandgap Transition in Hexagonal Two-Dimensional Semiconductors by Kang, Joongoo, Zhang, Lijun, Wei, Su-Huai

“…Many important layered semiconductors, such as hexagonal boron nitride (hBN) and transition-metal dichalcogenides (TMDs), are derived from a hexagonal lattice…”
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Materials Design of Solar Cell Absorbers Beyond Perovskites and Conventional Semiconductors via Combining Tetrahedral and Octahedral Coordination by Wang, Jing, Chen, Hangyan, Wei, Su‐Huai, Yin, Wan‐Jian

“…Tetrahedral coordination structures, e.g. crystalline Si, GaAs, CdTe, and octahedral coordination structures, e.g. perovskites, represent two classes of…”
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Achieving High Volumetric Lithium Storage Capacity in Compact Carbon Materials with Controllable Nitrogen Doping by Jin, Jinyin, Wang, Zhiwei, Wang, Rui, Wang, Jialiang, Huang, Zhendong, Ma, Yanwen, Li, Hai, Wei, Su‐Huai, Huang, Xiao, Yan, Jiaxu, Li, Shaozhou, Huang, Wei

“…Although nanostructured/nanoporous carbon and silicon‐based materials are a potential replacement for graphite as cost‐effective anodes for lithium ion…”
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Comment on “Wide‐Range‐Tunable p‐Type Conductivity of Transparent CuI1‐xBrx Alloy” by Wang, Zhi‐Hao, Wei, Su‐Huai, Zhang, Xie

“…In a recent article, Yamada et al. proposed to utilize CuI‐CuBr alloys (CuI1‐xBrx) as a hole‐density‐tunable p‐type transparent semiconductor. Employing…”
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Na-Diffusion Enhanced p-type Conductivity in Cu(In,Ga)Se2: A New Mechanism for Efficient Doping in Semiconductors by Yuan, Zhen-Kun, Chen, Shiyou, Xie, Yun, Park, Ji-Sang, Xiang, Hongjun, Gong, Xin-Gao, Wei, Su-Huai

“…A new mechanism responsible for the hole concentration increase in the CIGS thin films after Na doping is proposed. At high temperature, a high concentration…”
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Simultaneous band-gap narrowing and carrier-lifetime prolongation of organic–inorganic trihalide perovskites by Kong, Lingping, Liu, Gang, Gong, Jue, Hu, Qingyang, Schaller, Richard D., Dera, Przemyslaw, Zhang, Dongzhou, Liu, Zhenxian, Yang, Wenge, Zhu, Kai, Tang, Yuzhao, Wang, Chuanyi, Wei, Su-Huai, Xu, Tao, Mao, Ho-kwang

“…The organic–inorganic hybrid lead trihalide perovskites have been emerging as the most attractive photovoltaic materials. As regulated by Shockley–Queisser…”
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Tunable Polarity Behavior and Self-Driven Photoswitching in p-WSe2/n-WS2 Heterojunctions by Huo, Nengjie, Yang, Juehan, Huang, Le, Wei, Zhongming, Li, Shu-Shen, Wei, Su-Huai, Li, Jingbo

“…Van der Waals (vdW) p–n heterojunctions consisting of various 2D layer compounds are fascinating new artificial materials that can possess novel physics and…”
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