Special Series on Perovskite-Based Solar Cells

High-performance cadmium sulphide-based planar perovskite solar cell and the cadmium sulphide/perovskite interfaces

[+] Author Affiliations
Haitao Peng

Peking University, College of Engineering, Department of Energy and Resources Engineering, Haidian District, Beijing 100871, China

Peking University, State Key Laboratory of Rare Earth Materials Chemistry and Applications, Haidian District, Beijing 100871, China

Weihai Sun, Yunlong Li, Weibo Yan, Zuqiang Bian, Chunhui Huang

Peking University, State Key Laboratory of Rare Earth Materials Chemistry and Applications, Haidian District, Beijing 100871, China

Pingrong Yu

Peking University, College of Engineering, Department of Energy and Resources Engineering, Haidian District, Beijing 100871, China

Huanping Zhou

Peking University, College of Engineering, Department of Energy and Resources Engineering, Haidian District, Beijing 100871, China

Peking University, College of Engineering, Department of Materials Science and Engineering, Haidian District, Beijing 100871, China

J. Photon. Energy. 6(2), 022002 (Apr 15, 2016). doi:10.1117/1.JPE.6.022002
History: Received January 19, 2016; Accepted March 7, 2016
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Abstract.  Planar heterojunction perovskite solar cell is one of the most competitive photovoltaic technologies, while charge transport materials play a crucial role. We successfully demonstrated an effective electron transport material, namely chemical bath deposited cadmium sulphide (CdS) film under low temperature, in perovskite-based solar cells. Power conversion efficiency of 16.1% has been achieved, which is comparable to that of devices based on TiO2 film prepared via low-temperature processes. Electronic impedance spectra reveal that the CdS-based device presents a higher recombination resistance than TiO2-based devices, which reduces carrier recombination and increases the open circuit voltage. The interface between CdS and perovskite was characterized with improved characteristics when compared to TiO2, e.g., efficient carrier extraction and reduced surface defect–associated degradation in the devices, which help to alleviate anomalous hysteresis and long-term instability. Furthermore, the entire device was fabricated via solution process with a processing temperature below 100°C, suggesting a promising method of further development of perovskite solar cells and commercial manufacturing.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Haitao Peng ; Weihai Sun ; Yunlong Li ; Weibo Yan ; Pingrong Yu, et al.
"High-performance cadmium sulphide-based planar perovskite solar cell and the cadmium sulphide/perovskite interfaces", J. Photon. Energy. 6(2), 022002 (Apr 15, 2016). ; http://dx.doi.org/10.1117/1.JPE.6.022002


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