Low-temperature, solution processed metal sulfide as an electron transport layer for efficient planar perovskite solar cells

Organic-inorganic halide perovskites possess excellent chemical, optical, and electronic properties that make them attractive for next-generation solar cells. In this paper, we introduce all-low-temperature processed perovskite solar cells using metal sulfide as an electron transport layer. First, w...

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Published inJournal of materials chemistry. A, Materials for energy and sustainability Vol. 3; no. 22; pp. 11750 - 11755
Main Authors Liu, Jiang, Gao, Cheng, Luo, Lizhu, Ye, Qinyan, He, Xulin, Ouyang, Liangqi, Guo, Xiaowei, Zhuang, Daming, Liao, Cheng, Mei, Jun, Lau, Woonming
Format Journal Article
LanguageEnglish
Published 01.01.2015
Subjects
Conversion
Devices
Electron transport
Optical properties
Perovskites
Photovoltaic cells
Solar cells
Sulfides
Sustainability
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Summary:Organic-inorganic halide perovskites possess excellent chemical, optical, and electronic properties that make them attractive for next-generation solar cells. In this paper, we introduce all-low-temperature processed perovskite solar cells using metal sulfide as an electron transport layer. First, we evaluated the alignment of energy levels at the perovskite/metal sulfide layer interface. The properties of metal sulfide and the perovskite layer, as well as the corresponding device performance, were then investigated. Using a CdS layer as an electron transport layer, we have achieved a maximum power conversion efficiency of 11.2% under reverse scans. The successful use of the CdS layer in perovskite solar cells likely would create new pathways and opportunities for the advancement of device design.
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ISSN:2050-7488
2050-7496
DOI:10.1039/c5ta01200g