引入添加剂对CsPbI2Br钙钛矿太阳能电池的结晶改进及缺陷钝化

IF 5.5 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2025-02-27 DOI:10.1021/acsaem.5c00084

Zhuowei Li, Qian Wang, Wenwen Liu, Hanxiao Gao, Yanyu Deng, Chunyu Liu* and Wenbin Guo*,

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引用次数: 0

摘要

具有合适带隙的CsPbI2Br钙钛矿表现出优异的光热稳定性。目前，CsPbI2Br钙钛矿太阳能电池（PSCs）商业化的关键在于提高其功率转换效率（PCE）。在本研究中，我们将4-氯苯胺（PCA）的多功能添加剂引入到n-i-p结构的CsPbI2Br psc中。经退火后，掺PCA的钙钛矿层结晶度明显增强。此外，钙钛矿层中的PCA通过胺与Pb2+的化学配位，有效地钝化了缺陷，从而进一步提高了器件性能。通过对结晶和缺陷钝化的有效管理，我们观察到PCE从13.44%大幅提高到16.15%。本研究为无机聚酰亚胺的高效添加剂选择提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Crystallization Improvement and Defect Passivation of CsPbI2Br Perovskite Solar Cells by Introducing Additive

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Crystallization Improvement and Defect Passivation of CsPbI2Br Perovskite Solar Cells by Introducing Additive

The CsPbI₂Br perovskite with a suitable bandgap demonstrates exceptional photothermal stability. Currently, the key factor for the commercialization of CsPbI₂Br perovskite solar cells (PSCs) lies in enhancing their power conversion efficiency (PCE). In this study, we introduce a multifunctional additive of 4-chloroaniline (PCA) into n-i-p structured CsPbI₂Br PSCs. After annealing, the crystallinity of the perovskite layer doped with PCA was significantly enhanced. Additionally, PCA existing in the perovskite layer effectively passivates defects through chemical coordination between amine and Pb²⁺, thereby further improving the device performance. Through effective management of crystallization and defect passivation, we observe a substantial increase in PCE from 13.44% to 16.15%. This research provides valuable insights for selecting efficient additives for inorganic PSCs.

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.