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人工晶体学报 ›› 2025, Vol. 54 ›› Issue (5): 864-872.DOI: 10.16553/j.cnki.issn1000-985x.2025.0005

• 研究论文 • 上一篇    下一篇

咪唑基离子液修饰钙钛矿太阳能电池及其性能研究

加雪峰(), 阮妙, 叶林峰, 倪玉凤, 郭永刚, 高鹏   

  1. 青海黄河上游水电开发有限责任公司西安太阳能电力分公司,西安 710010
  • 收稿日期:2025-01-07 出版日期:2025-05-15 发布日期:2025-05-28
  • 作者简介:加雪峰(2000—),男,陕西省人,工程师。E-mail:552398627@qq.com
  • 基金资助:
    青海省科技厅科技项目(2023-GX-149)

Imidazolium Ionic Liquid-Modified Perovskite Solar Cells and Its Performance Characteristics

JIA Xuefeng(), RUAN Miao, YE Linfeng, NI Yufeng, GUO Yonggang, GAO Peng   

  1. Xi’an Solar Power Branch,Qinghai Huanghe Hydropower Development Co. ,Ltd. ,Xi’an 710010,China
  • Received:2025-01-07 Online:2025-05-15 Published:2025-05-28

摘要: 宽带隙钙钛矿太阳能电池是晶硅-钙钛矿叠层电池的主要组成部分。宽带隙钙钛矿材料存在缺陷密度大、非辐射复合严重等问题,限制了宽带隙钙钛矿太阳能电池的发展。为改善这些问题,本研究提出了一种利用离子液1-丁基-3-甲基咪唑甲磺酸盐(BMM)修饰钙钛矿薄膜的方法。通过研究不同浓度BMM添加剂对钙钛矿薄膜及其电池性能的影响,发现调控BMM的添加量能够提升结晶质量,减少薄膜内部的缺陷,从而提高钙钛矿太阳能电池性能。在最佳条件下,钙钛矿电池的效率高达20.27%,各项光电性能均实现了明显的改善,同时也表现出优良的稳定性。这些结果有力地证明了BMM作为一种有效的添加剂,对于制备高质量的钙钛矿薄膜和实现高性能的器件具有巨大的潜力,为未来的实际应用提供了重要的参考。

关键词: 钙钛矿; 添加剂; 非辐射复合; 钝化; 结晶调控; 光伏性能; 稳定性

Abstract: Wide-bandgap perovskite solar cells are a key component of silicon-perovskite tandem solar cells. However, the development of wide-bandgap perovskite solar cells has been hindered by issues such as high defect density and severe non-radiative recombination in wide-bandgap perovskite materials. To address these issues, this study proposes a method for modifying perovskite films using the ionic liquid 1-butyl-3-methylimidazolium methanesulfonate (BMM). By investigating the effects of different BMM concentrations on perovskite films and their solar cell performance, it is found that optimizing the BMM additive amount can enhance crystallization quality and reduce internal film defects, thereby improving the performance of perovskite solar cells. Under optimal conditions, the perovskite solar cells achieved an efficiency of 20.27%, with significant improvements in various optoelectronic properties and excellent stability. These results strongly demonstrate that BMM, as an effective additive, holds great potential for the fabrication of high-quality perovskite films and the realization of high-performance devices, providing important insights references for future practical applications.

Key words: perovskite; additive; non-radiative recombination; passivation; crystallization modulation; photovoltaic performance; stability

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