碳电极钙钛矿太阳能电池光吸收层厚度对光伏性能的影响研究

人工晶体学报 ›› 2022, Vol. 51 ›› Issue (11): 1936-1943.

碳电极钙钛矿太阳能电池光吸收层厚度对光伏性能的影响研究

楚树勇, 张正国, 刘海

北方民族大学化学与化学工程学院,银川 750021

收稿日期:2022-06-28 出版日期:2022-11-15 发布日期:2022-12-07
通讯作者: 张正国,博士,讲师。E-mail:zhangzhengguo1119@126.com
作者简介:楚树勇(1995—),男,河北省人,硕士研究生。E-mail:1441609921@qq.com
基金资助:
中国科学院西部之光项目(XAB2020YW11);北方民族大学青年人才科研启动项目(2019KYQD44);宁夏青年科技托举人才项目(2019TJGC015)

Effect of Optical Absorption Layer Thickness on Photovoltaic Performance of Carbon Electrode Perovskite Solar Cells

CHU Shuyong, ZHANG Zhengguo, LIU Hai

Chemical Science and Engineering College, North Minzu University, Yinchuan 750021, China

Received:2022-06-28 Online:2022-11-15 Published:2022-12-07

摘要/Abstract

摘要： 本文使用两步法,通过控制PbI₂(DMSO)溶液的浓度制备了不同厚度的有机-无机杂化钙钛矿(MAPbI₃)光吸收层薄膜,并组装了大面积基于碳电极且无空穴传输层的钙钛矿太阳能电池。对不同厚度MAPbI₃光吸收层薄膜的晶相、光吸收性质、表面形貌、元素组成进行分析,并进一步测试了基于MAPbI₃薄膜制备的钙钛矿太阳能电池的光伏性能。结果表明,MAPbI₃光吸收层薄膜厚度与PbI₂(DMSO)浓度呈正相关关系,浓度为1.3 mol/L的PbI₂溶液制备的MAPbI₃薄膜厚度约为350 nm,具有较好的结晶度和光吸收强度,且薄膜表面致密平整,无明显缺陷,基于350 nm MAPbI₃光吸收层的钙钛矿太阳能电池获得了8.48%的光电转换效率。

关键词: 碳电极, 钙钛矿, 太阳能电池, 无空穴传输层, 光吸收层, 光伏性能

Abstract: In this paper, organic-inorganic hybrid perovskite (MAPbI₃) optical absorption layer thin film with different thickness was prepared by controlling the concentration of PbI₂(DMSO) solution by two-step method, and a large area perovskite solar cell based on carbon electrode hole-free transport layer was assembled. The crystal phase, optical absorption properties, surface morphology and elemental composition of MAPbI₃ optical absorption layer films with different thickness were analyzed, and the photovoltaic performance of perovskite solar cells prepared based on MAPbI₃ film were further tested. The results show that the thickness of MAPbI₃ photoabsorption layer is positively correlated with the concentration of PbI₂(DMSO). The thickness of MAPbI₃ optical absorption layer prepared by 1.3 mol/L PbI₂ solution is about 350 nm, which has good crystallinity and optical absorption intensity, and the surface of the film is compact and smooth without obvious defects. Finally, the perovskite solar cell based on 350 nm MAPbI₃ optical absorption layer achieves 8.48% photoelectric conversion efficiency.

Key words: carbon electrode, perovskite, solar cell, hole-free transport layer, optical absorption layer, photovolatic performance

中图分类号:

TM914.4
TB34

楚树勇, 张正国, 刘海. 碳电极钙钛矿太阳能电池光吸收层厚度对光伏性能的影响研究[J]. 人工晶体学报, 2022, 51(11): 1936-1943.

CHU Shuyong, ZHANG Zhengguo, LIU Hai. Effect of Optical Absorption Layer Thickness on Photovoltaic Performance of Carbon Electrode Perovskite Solar Cells[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2022, 51(11): 1936-1943.

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