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author:

黄少彪 (黄少彪.) [1] | 吴炯桦 (吴炯桦.) [2] (Scholars:吴炯桦)

Abstract:

制备了基于不同碘化铅浓度的反式钙钛矿太阳能电池,并用SEM、XRD、紫外-可见吸收谱、空间电荷限制电流曲线、瞬态光电压谱进行了表征.研究发现,碘化铅浓度对电池性能有很大影响,即随着碘化铅浓度的增加,短路电流略有降低,而开路电压和填充因子上升较大.同时,较高的PbI2浓度可有效减弱迟滞现象.通过结合光学表征与电学表征,进一步发现过量的PbI2可以在钙钛矿晶界处钝化缺陷,降低薄膜缺陷密度,从而提高器件的开路电压和填充因子.最终,在优化的摩尔量下,采用ITO/MeO-2PACz/PVSK/PC61BM/BCP/Ag的反式结构,制备的钙钛矿太阳能电池表现出卓越的功率转换效率(PCE),达到了22.90%.

Keyword:

反式钙钛矿太阳能电池 碘化铅 缺陷钝化

Community:

  • [ 1 ] [吴炯桦]福州大学
  • [ 2 ] [黄少彪]福州大学

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Source :

光电子技术

ISSN: 1005-488X

Year: 2025

Issue: 1

Volume: 45

Page: 45-51

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ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 0

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