Simulation study of carbon electrode based CsPbBr3 homojunction solar cells for enhanced performance

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy Pub Date : 2025-08-27 DOI:10.1016/j.solener.2025.113931

Weiwei Li , Shumin Chen , Dingshan Zheng , Han Pan , Nian Cheng

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引用次数: 0

Abstract

All-inorganic perovskite solar cells (PSCs), especially all bromide CsPbBr₃, are attracting tremendous attention recently. However, currently there is a large efficiency gap between the experimentally reported power conversion efficiencies (PCEs) and theoretical PCE of CsPbBr₃ PSCs. To shed light on further optimizing the PCEs of CsPbBr₃ PSCs, device simulation using SCAPS-1D is carried out in this study. Hole transport layer free CsPbBr₃ PSCs with a single n-type or p-type CsPbBr₃ film are firstly studied and compared with those results from experiments. Then CsPbBr₃ homojunction solar cells using both n-type and p-type CsPbBr₃ films are further constructed. The influence of p-type CsPbBr₃ film thickness and doping concentration on the performances of the corresponding CsPbBr₃ PSCs are analyzed and discussed in detail. Finally, a champion PCE of 13.87 % could be obtained in FTO/TiO₂/n-type CsPbBr₃ (700 nm)/p-type CsPbBr₃ (100 nm)/carbon device when the p-type CsPbBr₃ film is doped at a concentration of 1 × 10¹⁸ cm⁻³.

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碳电极基CsPbBr3同质结太阳能电池性能增强的仿真研究

全无机钙钛矿太阳能电池（PSCs），特别是全溴化钙钛矿太阳能电池（CsPbBr3）近年来引起了广泛的关注。然而，目前CsPbBr3 PSCs的实验功率转换效率（PCE）与理论PCE之间存在很大的效率差距。为了进一步优化CsPbBr3 PSCs的pce，本研究使用SCAPS-1D进行了器件仿真。首先研究了具有单一n型和p型CsPbBr3薄膜的无空穴传输层CsPbBr3 PSCs，并对实验结果进行了比较。然后进一步构建了采用n型和p型CsPbBr3薄膜的CsPbBr3同结太阳能电池。详细分析和讨论了p型CsPbBr3薄膜厚度和掺杂浓度对相应CsPbBr3 PSCs性能的影响。最后，当p型CsPbBr3薄膜掺杂浓度为1 × 1018 cm−3时，FTO/TiO2/n型CsPbBr3 (700 nm)/p型CsPbBr3 (100 nm)/碳器件的冠军PCE为13.87%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Solar Energy 工程技术-能源与燃料

CiteScore

13.90

自引率

9.00%

发文量

审稿时长

47 days

期刊介绍： Solar Energy welcomes manuscripts presenting information not previously published in journals on any aspect of solar energy research, development, application, measurement or policy. The term "solar energy" in this context includes the indirect uses such as wind energy and biomass