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Start Over Author "Sun, Baoquan" Journal advanced energy materials
18 results on '"Sun, Baoquan"'

7. Thin Films: Ethanedithiol Treatment of Solution-Processed ZnO Thin Films: Controlling the Intragap States of Electron Transporting Interlayers for Efficient and Stable Inverted Organic Photovoltaics (Adv. Energy Mater. 5/2015)

Author

Bai, Sai, primary, Jin, Yizheng, additional, Liang, Xiaoyong, additional, Ye, Zhizhen, additional, Wu, Zhongwei, additional, Sun, Baoquan, additional, Ma, Zaifei, additional, Tang, Zheng, additional, Wang, Jianpu, additional, Würfel, Uli, additional, Gao, Feng, additional, and Zhang, Fengling, additional

Published
2015
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8. Ethanedithiol Treatment of Solution‐Processed ZnO Thin Films: Controlling the Intragap States of Electron Transporting Interlayers for Efficient and Stable Inverted Organic Photovoltaics

Author

Bai, Sai, primary, Jin, Yizheng, additional, Liang, Xiaoyong, additional, Ye, Zhizhen, additional, Wu, Zhongwei, additional, Sun, Baoquan, additional, Ma, Zaifei, additional, Tang, Zheng, additional, Wang, Jianpu, additional, Würfel, Uli, additional, Gao, Feng, additional, and Zhang, Fengling, additional

Published
2014
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9. Optoelectronic Devices: Low-Temperature Combustion-Synthesized Nickel Oxide Thin Films as Hole-Transport Interlayers for Solution-Processed Optoelectronic Devices (Adv. Energy Mater. 6/2014)

Author

Bai, Sai, primary, Cao, Motao, additional, Jin, Yizheng, additional, Dai, Xinliang, additional, Liang, Xiaoyong, additional, Ye, Zhizhen, additional, Li, Min, additional, Cheng, Jipeng, additional, Xiao, Xuezhang, additional, Wu, Zhongwei, additional, Xia, Zhouhui, additional, Sun, Baoquan, additional, Wang, Ergang, additional, Mo, Yueqi, additional, Gao, Feng, additional, and Zhang, Fengling, additional

Published
2014
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11. Low‐Temperature Combustion‐Synthesized Nickel Oxide Thin Films as Hole‐Transport Interlayers for Solution‐Processed Optoelectronic Devices

Author

Bai, Sai, primary, Cao, Motao, additional, Jin, Yizheng, additional, Dai, Xinliang, additional, Liang, Xiaoyong, additional, Ye, Zhizhen, additional, Li, Min, additional, Cheng, Jipeng, additional, Xiao, Xuezhang, additional, Wu, Zhongwei, additional, Xia, Zhouhui, additional, Sun, Baoquan, additional, Wang, Ergang, additional, Mo, Yueqi, additional, Gao, Feng, additional, and Zhang, Fengling, additional

Published
2013
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14. Hot-Electron Injection in a Sandwiched TiO x-Au-TiO x Structure for High-Performance Planar Perovskite Solar Cells.

Author

Yuan, Zhongcheng, Wu, Zhongwei, Bai, Sai, Xia, Zhouhui, Xu, Weidong, Song, Tao, Wu, Haihua, Xu, Luhai, Si, Junjie, Jin, Yizheng, and Sun, Baoquan

Subjects
GOLD nanoparticles, SANDWICH construction (Materials), LOW temperature engineering, TITANIUM dioxide films, ELECTRON density, PEROVSKITE, CHARGE carrier mobility, CARRIER density
Abstract

A unique sandwiched structure of TiOx/Au‐NPs/TiOx is used to improve the charge transport properties of a TiOx film via plasmonic‐mediated hot carrier injection at the metal‐semiconductor Schottky junction. The injected carrier helps to fill trap states and to further decrease the Fermi level of TiOx. The combined effects dramatically enhance the perovskite solar cell performance, with a power conversion efficiency of 16.2%. [ABSTRACT FROM AUTHOR]

Published
2015
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15. Ethanedithiol Treatment of Solution-Processed ZnO Thin Films: Controlling the Intragap States of Electron Transporting Interlayers for Efficient and Stable Inverted Organic Photovoltaics.

Author

Bai, Sai, Jin, Yizheng, Liang, Xiaoyong, Ye, Zhizhen, Wu, Zhongwei, Sun, Baoquan, Ma, Zaifei, Tang, Zheng, Wang, Jianpu, Würfel, Uli, Gao, Feng, and Zhang, Fengling

Subjects
PHOTOVOLTAIC power generation, FILM condensation, THIN films, SOLAR cells, TRANSPORT theory
Abstract

The surface defects of solution-processed ZnO films lead to various intragap states. When the solution-processed ZnO films are used as electron transport interlayers (ETLs) in inverted organic solar cells, the intragap states act as interfacial recombination centers for photogenerated charges and thereby degrade the device performance. Here, a simple passivation method based on ethanedithiol (EDT) treatment is demonstrated, which effectively removes the surface defects of the ZnO nanocrystal films by forming zinc ethanedithiolates. The passivation by EDT treatment modulates the intragap states of the ZnO films and introduces a new intragap band. When the EDT-treated ZnO nanocrystal films are used as ETLs in inverted organic solar cells, both the power conversion efficiency and stability of the devices are improved. The control studies show that the solar cells with EDT-treated ZnO films exhibit reduced charge recombination rates and enhanced charge extraction properties. These features are consistent with the fact that the modulation of the intragap states results in reduction of interfacial recombination as well as the improved charge selectivity and electron transport properties of the ETLs. It is further demonstrated that the EDT treatment-based passivation method can be extended to ZnO films deposited from sol-gel precursors. [ABSTRACT FROM AUTHOR]

Published
2015
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16. Low-Temperature Combustion-Synthesized Nickel Oxide Thin Films as Hole-Transport Interlayers for Solution-Processed Optoelectronic Devices.

Author

Bai, Sai, Cao, Motao, Jin, Yizheng, Dai, Xinliang, Liang, Xiaoyong, Ye, Zhizhen, Li, Min, Cheng, Jipeng, Xiao, Xuezhang, Wu, Zhongwei, Xia, Zhouhui, Sun, Baoquan, Wang, Ergang, Mo, Yueqi, Gao, Feng, and Zhang, Fengling

Subjects
NICKEL oxides, THIN films, ELECTRON transport, OPTOELECTRONIC devices, POLYMER light emitting diodes, NICKEL nitrate, GLYCINE, THERMOGRAVIMETRY
Abstract

A method to deposit NiOx thin films by employing combustion reactions is reported and a low processing temperature of 175 °C is demonstrated. The resulting NiOx films exhibit high work functions, excellent optical transparency, and flat surface features. The NiOx thin films are employed as hole‐transport interlayers in organic solar cells and polymer light‐emitting diodes, exhibiting superior electrical properties. [ABSTRACT FROM AUTHOR]

Published
2014
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17. Heterojunction with Organic Thin Layers on Silicon for Record Efficiency Hybrid Solar Cells.

Author

Zhang, Yunfang, Zu, Fengshuo, Lee, Shuit‐Tong, Liao, Liangsheng, Zhao, Ni, and Sun, Baoquan

Subjects
HETEROJUNCTIONS, ORGANIC thin films, SCHOTTKY barrier, SCHOTTKY effect, SOLAR cell efficiency
Abstract

A record power conversion efficiency of 12.2% is achieved for a hybrid organic‐inorganic Schottky solar cell using a simple and low temperature (<150 °C) process. The heterojunction diode based on a simple integration of organic thin layers and silicon promises a low cost way to fabricate high performance solar cells. [ABSTRACT FROM AUTHOR]

Published
2014
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18. A Solution-Processed Hole Extraction Layer Made from Ultrathin MoS2 Nanosheets for Efficient Organic Solar Cells.

Author

Gu, Xing, Cui, Wei, Li, Hai, Wu, Zhongwei, Zeng, Zhiyuan, Lee, Shuit‐Tong, Zhang, Hua, and Sun, Baoquan

Subjects
NANOSTRUCTURED materials, ORGANIC thin films, SOLAR cells, PHOTOVOLTAIC cells, DIRECT energy conversion, INSERTION reactions (Chemistry)
Abstract

Room‐temperature solution‐processed ultrathin 2D MoS2 nanosheets are integrated into organic solar cells as an efficient hole extraction layer. An enhanced power conversion efficiency of 8.11% is achieved, which is superior to that of traditional vacuum‐evaporated molybdenum oxide. [ABSTRACT FROM AUTHOR]

Published
2013
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