Search Results - "Choy, Wallace C.H."

Achieving High-Quality Sn–Pb Perovskite Films on Complementary Metal-Oxide-Semiconductor-Compatible Metal/Silicon Substrates for Efficient Imaging Array by Zhu, Hugh Lu, Lin, Hong, Song, Zhilong, Wang, Zishuai, Ye, Fei, Zhang, Hong, Yin, Wan-Jian, Yan, Yanfa, Choy, Wallace C.H

“…Although Sn–Pb perovskites sensing near-ultraviolet–visible–near-infrared light could be an attractive alternative to silicon in photodiodes and imaging, there…”
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Perovskite Photovoltaics: The Significant Role of Ligands in Film Formation, Passivation, and Stability by Zhang, Hong, Nazeeruddin, Mohammad Khaja, Choy, Wallace C. H.

“…Due to their outstanding optoelectronic properties, metal halide perovskites have been intensively studied in recent years. The latest certificated efficiency…”
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Solution‐Processed Metal Oxide Nanocrystals as Carrier Transport Layers in Organic and Perovskite Solar Cells by Ouyang, Dan, Huang, Zhanfeng, Choy, Wallace C. H.

“…There has been rapid progress in solution‐processed organic solar cells (OSCs) and perovskite solar cells (PVSCs) toward low‐cost and high‐throughput…”
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Multifunctional Synthesis Approach of In:CuCrO2 Nanoparticles for Hole Transport Layer in High‐Performance Perovskite Solar Cells by Yang, Boping, Ouyang, Dan, Huang, Zhanfeng, Ren, Xingang, Zhang, Hong, Choy, Wallace C. H.

“…While there are very limited studies of doped ternary metal oxide based hole transport materials, a multifunctional synthesis approach of In doped CuCrO2…”
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Water‐Soluble Triazolium Ionic‐Liquid‐Induced Surface Self‐Assembly to Enhance the Stability and Efficiency of Perovskite Solar Cells by Wang, Shuangjie, Li, Zhen, Zhang, Yuanyuan, Liu, Xingrui, Han, Jian, Li, Xuanhua, Liu, Zhike, (Frank) Liu, Shengzhong, Choy, Wallace C. H.

“…Despite being a promising candidate for next‐generation photovoltaics, perovskite solar cells (PSCs) exhibit limited stability that hinders their practical…”
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Dual Plasmonic Nanostructures for High Performance Inverted Organic Solar Cells by Li, Xuanhua, Choy, Wallace C. H., Huo, Lijun, Xie, Fengxian, Sha, Wei E. I., Ding, Baofu, Guo, Xia, Li, Yongfang, Hou, Jianhui, You, Jingbi, Yang, Yang

“…Dual plasmonic metallic nanostructures in organic solar cells are demonstrated by simultaneously incorporating gold nanoparticles (NPs) into the active layer…”
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A Smooth CH3NH3PbI3 Film via a New Approach for Forming the PbI2 Nanostructure Together with Strategically High CH3NH3I Concentration for High Efficient Planar-Heterojunction Solar Cells by Zhang, Hong, Mao, Jian, He, Hexiang, Zhang, Di, Zhu, Hugh L., Xie, Fengxian, Wong, Kam Sing, Grätzel, Michael, Choy, Wallace C. H.

“…The photovoltaic performance of perovskite solar cells (PVSCs) is extremely dependent on the morphology and crystallization of the perovskite film, which is…”
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Toward All Room‐Temperature, Solution‐Processed, High‐Performance Planar Perovskite Solar Cells: A New Scheme of Pyridine‐Promoted Perovskite Formation by Zhang, Hong, Cheng, Jiaqi, Li, Dan, Lin, Francis, Mao, Jian, Liang, Chunjun, Jen, Alex K.‐Y., Grätzel, Michael, Choy, Wallace C. H.

“…A new, all room‐temperature solution process is developed to fabricate efficient, low‐cost, and stable perovskite solar cells (PVSCs). The PVSCs show high…”
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Emerging Novel Metal Electrodes for Photovoltaic Applications by Lu, Haifei, Ren, Xingang, Ouyang, Dan, Choy, Wallace C. H.

“…Emerging novel metal electrodes not only serve as the collector of free charge carriers, but also function as light trapping designs in photovoltaics. As a…”
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Effects of Self‐Assembled Monolayer Modification of Nickel Oxide Nanoparticles Layer on the Performance and Application of Inverted Perovskite Solar Cells by Wang, Qin, Chueh, Chu‐Chen, Zhao, Ting, Cheng, Jiaqi, Eslamian, Morteza, Choy, Wallace C. H., Jen, Alex K.‐Y.

“…Entirely low‐temperature solution‐processed (≤100 °C) planar p‐i‐n perovskite solar cells (PSCs) offer great potential for commercialization of roll‐to‐roll…”
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Strategic Synthesis of Ultrasmall NiCo2O4 NPs as Hole Transport Layer for Highly Efficient Perovskite Solar Cells by Ouyang, Dan, Xiao, Junyan, Ye, Fei, Huang, Zhanfeng, Zhang, Hong, Zhu, Lu, Cheng, Jiaqi, Choy, Wallace C. H.

“…This study proposes a novel strategy of controllable deamination of Co–NH3 complexes in a system containing Ni(OH)2 to synthesize ultrasmall ternary oxide…”
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A General Method: Designing a Hypocrystalline Hydroxide Intermediate to Achieve Ultrasmall and Well‐Dispersed Ternary Metal Oxide for Efficient Photovoltaic Devices by Huang, Zhanfeng, Ouyang, Dan, Ma, Ruiman, Wu, Wei, Roy, Vellaisamy A. L., Choy, Wallace C. H.

“…Solution‐process fine metal‐oxide nanoparticles are promising carrier transport layer candidates for unlocking the full potential of solution process in solar…”
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Low‐Bandgap Methylammonium‐Rubidium Cation Sn‐Rich Perovskites for Efficient Ultraviolet–Visible–Near Infrared Photodetectors by Zhu, Hugh Lu, Liang, Zhifu, Huo, Zhengbao, Ng, Wai Kit, Mao, Jian, Wong, Kam Sing, Yin, Wan‐Jian, Choy, Wallace C. H.

“…Solution‐processed and low‐temperature Sn‐rich perovskites show their low bandgap of about 1.2 eV, enabling potential applications in next‐generation…”
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Evolution of Diffusion Length and Trap State Induced by Chloride in Perovskite Solar Cell by Xie, Feng Xian, Su, Huimin, Mao, Jian, Wong, Kam Sing, Choy, Wallace C. H

“…Chloride (from PbCl2 or CH3NH3Cl) has been reported to improve the morphology of perovskite thin film and power conversion efficiency (PCE) of corresponding…”
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Organic-Inorganic Perovskite Light-Emitting Electrochemical Cells with a Large Capacitance by Zhang, Huimin, Lin, Hong, Liang, Chunjun, Liu, Hong, Liang, Jingjing, Zhao, Yong, Zhang, Wenguan, Sun, Mengjie, Xiao, Weikang, Li, Han, Polizzi, Stefano, Li, Dan, Zhang, Fujun, He, Zhiqun, Choy, Wallace C. H.

“…While perovskite light‐emitting diodes typically made with high work function anodes and low work function cathodes have recently gained intense interests…”
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Uncovering the Electron‐Phonon Interplay and Dynamical Energy‐Dissipation Mechanisms of Hot Carriers in Hybrid Lead Halide Perovskites by Chan, Christopher C. S., Fan, Kezhou, Wang, Han, Huang, Zhanfeng, Novko, Dino, Yan, Keyou, Xu, Jianbin, Choy, Wallace C. H., Lončarić, Ivor, Wong, Kam Sing

“…The discovery of slow hot carrier cooling in hybrid organic–inorganic lead halide perovskites (HOIPs) has provided exciting prospects for efficient solar cells…”
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In Situ Tin(II) Complex Antisolvent Process Featuring Simultaneous Quasi‐Core–Shell Structure and Heterojunction for Improving Efficiency and Stability of Low‐Bandgap Perovskite Solar Cells by Li, Can, Ma, Ruiman, He, Xinjun, Yang, Tingbin, Zhou, Ziming, Yang, Shuo, Liang, Yongye, Sun, Xiao Wei, Wang, Jiannong, Yan, Yanfa, Choy, Wallace C. H.

“…Unlike Pb‐based perovskites, it is still a challenge for realizing the targets of high performance and stability in mixed Pb–Sn perovskite solar cells owing to…”
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Self‐Assembled Quasi‐3D Nanocomposite: A Novel p‐Type Hole Transport Layer for High Performance Inverted Organic Solar Cells by Cheng, Jiaqi, Zhang, Hong, Zhao, Yong, Mao, Jian, Li, Can, Zhang, Shaoqing, Wong, Kam Sing, Hou, Jianhui, Choy, Wallace C. H.

“…Hole transport layer (HTL) plays a critical role for achieving high performance solution‐processed optoelectronics including organic electronics. For organic…”
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Quantifying Efficiency Loss of Perovskite Solar Cells by a Modified Detailed Balance Model by Sha, Wei E. I., Zhang, Hong, Wang, Zi Shuai, Zhu, Hugh L., Ren, Xingang, Lin, Francis, Jen, Alex K.‐Y., Choy, Wallace C. H.

“…A modified detailed balance model is built to understand and quantify efficiency loss of perovskite solar cells. The modified model captures the…”
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Device Physics of the Carrier Transporting Layer in Planar Perovskite Solar Cells by Ren, Xingang, Wang, Zi Shuai, Choy, Wallace C. H.

“…Perovskite solar cells (PVSCs) have emerged as a promising candidate for addressing the energy crisis due to their rapid efficiency improvement up to 24.2%…”
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