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Your search keyword '"Zhou, Ke"' showing total 10 results
Start Over Author "Zhou, Ke" Journal advanced energy materials
10 results on '"Zhou, Ke"'

1. Control of the Crystallization and Phase Separation Kinetics in Sequential Blade‐Coated Organic Solar Cells by Optimizing the Upper Layer Processing Solvent

Author

Wang, Yilin, primary, Xue, Jingwei, additional, Zhong, Huaying, additional, Everett, Christopher R., additional, Jiang, Xinyu, additional, Reus, Manuel A., additional, Chumakov, Andrei, additional, Roth, Stephan V., additional, Adedeji, Michael A., additional, Jili, Ncedo, additional, Zhou, Ke, additional, Lu, Guanghao, additional, Tang, Zheng, additional, Mola, Genene Tessema, additional, Müller‐Buschbaum, Peter, additional, and Ma, Wei, additional

Published
2023
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2. Tuning Acceptor Composition in Ternary Organic Photovoltaics–Impact of Domain Purity on Non‐Radiative Voltage Losses

Author

Bi, Zhaozhao, primary, Naveed, Hafiz Bilal, additional, Wu, Hongbo, additional, Zhang, Cankun, additional, Zhou, Xiaobo, additional, Wang, Jing, additional, Wang, Meng, additional, Wu, Xuanhao, additional, Zhu, Qinglian, additional, Zhou, Ke, additional, Chen, Kai, additional, Wang, Cheng, additional, Tang, Zheng, additional, and Ma, Wei, additional

Published
2022
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4. Electrochemo‐Mechanical Effects on Structural Integrity of Ni‐Rich Cathodes with Different Microstructures in All Solid‐State Batteries

Author

Liu, Xiangsi, primary, Zheng, Bizhu, additional, Zhao, Jun, additional, Zhao, Weimin, additional, Liang, Ziteng, additional, Su, Yu, additional, Xie, Chenpeng, additional, Zhou, Ke, additional, Xiang, Yuxuan, additional, Zhu, Jianping, additional, Wang, Hongchun, additional, Zhong, Guiming, additional, Gong, Zhengliang, additional, Huang, Jianyu, additional, and Yang, Yong, additional

Published
2021
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9. Reversible Electron–Holes on O in P2‐type Na0.67Li0.1Ni0.3Mn0.6O2.

Author

Marie, John‐Joseph, Jenkins, Max, Chen, Jun, Rees, Gregory, Cellorio, Veronica, Choi, Jaewon, Agrestini, Stefano, Garcia‐Fernandez, Mirian, Zhou, Ke‐Jin, House, Robert A., and Bruce, Peter G.

Subjects
*ENERGY density, *HIGH voltages, *TRANSITION metals, *CATHODES, *HONEYCOMB structures, *LITHIUM cells
Abstract

Achieving reversible O‐redox through the formation of electron–holes on O could hold the key to a new generation of high energy density Na‐ion cathodes. However, to date, it has only been demonstrated in a small handful of cathode materials and none of these materials exploit the dual benefit of high voltage transition metal redox and O‐redox, instead relying on Mn3+/4+ capacity close to 2 V vs Na+/Na. Here, a new Na‐ion cathode exhibiting electron–holes on O is demonstrated, P2‐type Na0.67Li0.1Ni0.3Mn0.6O2, which also utilizes the high voltage Ni3+/4+ redox couple to deliver the highest reported energy density among this class of compound. By employing a low Li content and avoiding honeycomb ordering within the transition metal layer, it is possible to stabilize the hole states, and the high voltage plateau is preserved in Na0.67Li0.1Ni0.3Mn0.6O2 over cycling. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Improved SnO2 Electron Transport Layers Solution‐Deposited at Near Room Temperature for Rigid or Flexible Perovskite Solar Cells with High Efficiencies.

Author

Dong, Qingshun, Li, Jiangwei, Shi, Yantao, Chen, Min, Ono, Luis K., Zhou, Ke, Zhang, Chunyang, Qi, Yabing, Zhou, Yuanyuan, Padture, Nitin P., and Wang, Liduo

Subjects
SILICON solar cells, SOLAR cell efficiency, ELECTRON transport, PEROVSKITE, TIN oxides, SURFACE defects, SOLAR cells
Abstract

Electron transport layer (ETL) is a functional layer of great significance for boosting the power conversion efficiency (PCE) of perovskite solar cells (PSCs). To date, it is still a challenge to simultaneously reduce the surface defects and improve the crystallinity in ETLs during their low‐temperature processing. Here, a novel strategy for the mediation of in situ regrowth of SnO2 nanocrystal ETLs is reported: introduction of controlled trace amounts of surface absorbed water on the fluorinated tin oxide (FTO) or indium–tin oxide (ITO) surfaces of the substrates using ultraviolet ozone (UVO) pretreatment. The optimum amount of adsorbed water plays a key role in balancing the hydrolysis–condensation reactions during the structural evolution of SnO2 thin films. This new approach results in a full‐coverage SnO2 ETL with a desirable morphology and crystallinity for superior optical and electrical properties, as compared to the control SnO2 ETL without the UVO pretreatment. Finally, the rigid and flexible PSC devices based on the new SnO2 ETLs yield high PCEs of up to 20.5% and 17.5%, respectively. [ABSTRACT FROM AUTHOR]

Published
2019
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