正向偏置电压修复钙钛矿太阳电池的研究

郑志江; 王仁杰; 黄少彪; 杭陈旺; 吴炯桦; 程树英

doi:10.19912/j.0254-0096.tynxb.2023-1293

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (4) : 59-64. DOI: 10.19912/j.0254-0096.tynxb.2023-1293

正向偏置电压修复钙钛矿太阳电池的研究

郑志江^1,2, 王仁杰^1,2, 黄少彪^1,2, 杭陈旺^1,2, 吴炯桦^1,2, 程树英^1~3

作者信息 +

INVESTIGATION OF REPAIRING PEROVSKITE SOLAR CELLS VIA FORWARD BIAS VOLTAGE

Zheng Zhijiang^1,2, Wang Renjie^1,2, Huang Shaobiao^1,2, Hang Chenwang^1,2, Wu Jionghua^1,2, Cheng Shuying^1~3

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文章历史 +

摘要

采用偏置电压调控钙钛矿太阳电池离子迁移,抑制钙钛矿离子在界面的堆积、填充太阳电池缺陷,恢复老化太阳电池的性能。在对老化太阳电池引入正向偏置电压修复手段后,太阳电池光电转换效率从老化后的17.8%恢复到21.5%;在100 h的最大功率点跟踪中引入偏置电压修复手段后,获得3.1%总能量增益。通过自主搭建的集成表征环境,原位实时测量偏压修复太阳电池前后太阳电池电学性能和光学特性的变化规律,建立偏压调控钙钛矿离子迁移的物理模型,探究偏置电压修复太阳电池的背后机理。结果表明,该修复策略可通过调控离子迁移,钝化缺陷、优化载流子提取和输运、进而修复太阳电池。

Abstract

Forward bias voltage is utilized to regulate ion migration in perovskite solar cells（PSCs）, thereby preventing the accumulation of perovskite ions at the interface, passivating defects, and restoring the performance of aged PSCs. The power conversion efficiency （PCE） of the aged PSCs is restored from 17.8% to 21.5% by implementing the forward bias voltage repair method. Introducing the bias voltage repair method in the maximum power point tracking for 100 hours yielded a total energy gain of 3.1%. An independently constructed integrated characterization environment was used to measure the real-time changes in the electrical and optical characteristics of PSCs before and after the repair process using bias voltage. Furthermore, a physical model was developed to investigate the mechanism behind the repair process, specifically focusing on the regulation of perovskite ion migration by bias voltage. The results demonstrate that the repairing strategy can control ion migration, passivate defects, optimize carrier extraction and transport, and ultimately repair the PSCs.

导出引用

郑志江, 王仁杰, 黄少彪, 杭陈旺, 吴炯桦, 程树英. 正向偏置电压修复钙钛矿太阳电池的研究[J]. 太阳能学报. 2024, 45(4): 59-64 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1293

Zheng Zhijiang, Wang Renjie, Huang Shaobiao, Hang Chenwang, Wu Jionghua, Cheng Shuying. INVESTIGATION OF REPAIRING PEROVSKITE SOLAR CELLS VIA FORWARD BIAS VOLTAGE[J]. Acta Energiae Solaris Sinica. 2024, 45(4): 59-64 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1293

中图分类号： TK914.4

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