基于氧化石墨烯空穴传输层的平面异质结钙钛矿太阳能电池

doi:10.11896/cldb.20010007

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Abstract Spiro-OMeTAD is expensive, unfriendly to environment and difficult to be fabricated as it is used as a traditional hole transport material in perovskite solar cells. In this paper, GO is utilized as a replacement of Spiro-OMeTAD. The influence of concentration of the GO dispersed solution on the photoelectric performance of the device was investigated. Primarily, different film thickness is obtained by varying the concentration of the dispersed solution. It was found that GO substrates evidently influence on the perovskite grain size. Furthermore, a planar device was fabricated with a structure of ITO/GO/CH₃NH₃PbI₃/PCBM/Ag. The effect of GO substrate on perovskite solar cell was analyzed by characterizing the photoelectric properties of the devices with different GO substrates. It illustrates that the grain size of perovskite crystal is up to 900 nm if the GO film is fabricated by a dispersion concentration of 0.25 mg/mL. In addition, the peak of PL for the perovskite thin film on the GO substrate is 2 000, and the charge transfer efficiency reaches to 52.8%. GO-based perovskite solar cell is finally optimized, and its photoelectric conversion efficiency (PCE) can be up to 8.69%.

Key words： perovskite solar cell GO hole transport layer grain growth

Published: 23 March 2021

CLC number:

TM914

Fund:National Natural Science Foundation of China (61565015), and the Innovation Program for Graduate Students of Ningxia University (GIP2019029).

About author:: Xinlei Suo is a postgraduate student in Ningxia University. From September 2014 to June 2018, he obtained the bachelor of engineering degree in photoelectric information technology and engineering from Shaanxi University of Science & Technology. Mainly engaged in organic-inorganic hybrid perovskite photoelectric device interface optimization and charge transfer layer efficiency research.
Guolong Li is an associate professor and tutor of postgraduate students in Ningxia University. Between September 2001 and June 2008, received bachelor of science degree in applied physics and master of engineering degree in optical engineering from Jilin University. September 2008 to June 2012, from the Zhejiang University professional doctorate in engineering measurement technology and instrument, and after graduation in Ningxia University, from 2016 to 2017, to the United States at the University of California, Los Angeles for a visit. He has published more than 10 papers in academic journals at home and abroad. The research work mainly focuses on optical and optoelectronic thin films, organic (perovskite) solar cells, and solar cell electrode materials. Presided over the National Natural Science Foundation of China, the Light Project of the Chinese Academy of Sciences, etc.

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	SUO Xinlei
	LIU Yan
	ZHANG Lilai
	SU Hang
	LI Wan
	LI Guolong

Cite this article:

SUO Xinlei,LIU Yan,ZHANG Lilai, et al. A Planar Heterojunction Perovskite Solar Cell Based on Graphene Oxide Hole Transport Layer[J]. Materials Reports, 2021, 35(6): 6015-6019.

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http://www.mater-rep.com/EN/10.11896/cldb.20010007 OR http://www.mater-rep.com/EN/Y2021/V35/I6/6015

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