高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

含吡啶基团的小分子三苯胺改善CsPbI3钙钛矿太阳电池性能的研究

吕海军1，王胜港2，马嘉茁2，郝彦忠2   

  1. 1. 河北科技大学化工学院 2. 河北科技大学理学院
  • 收稿日期:2025-01-17 修回日期:2025-04-29 网络首发:2025-05-06 发布日期:2025-05-06
  • 通讯作者: 郝彦忠 E-mail:yzhao@hebust.edu.cn
  • 基金资助:
    河北省自然科学基金（批准号：B2022208001）

Improvement of CsPbI3 Perovskite Solar Cell Performance by Small Molecules of Triphenylamine Containing Pyridine Groups

Lyu Haijun1, WANG Shenggang2, MA Jiazhuo2, HAO Yanzhong2#br#   

  1. 1. College of Chemical Engineering, Hebei University of Science and Technology 2. College of Science, Hebei University of Science and Technology
  • Received:2025-01-17 Revised:2025-04-29 Online First:2025-05-06 Published:2025-05-06
  • Contact: HAO Yan-Zhong E-mail:yzhao@hebust.edu.cn
  • Supported by:
    Supported by the Natural Science Foundation of Hebei Province, China(No.B2022208001)

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摘要： 本文采用Suzuki-Miyaura、Ullmann等经典反应分别合成了两种具有D-Π-A结构的新型小分子三苯胺衍生物：N,N-双（4-甲氧基苯基）-4-（4-吡啶基）苯胺 (（H432）、N,N-双（4-甲氧基苯基）-4-[4-(氰基)-3-吡啶基]苯胺（H462），将两种小分子三苯胺分别用结晶修饰和表面后处理修饰的方法沉积在FTO/c-TiO2/m-TiO2/CsPbI3复合薄膜上，制备成CsPbI3钙钛矿太阳电池；采用SEM，J-V曲线和电化学阻抗等方法进行表征和测试。结果表明，采用表面后处理修饰的方法制备的CsPbI3钙钛矿太阳电池的能量转换效率显著提高，0.05mol/L H432修饰的CsPbI3钙钛矿太阳电池能量转换效率由对照器件的12.44%提高到了15.54%，0.05mol/L H462修饰的CsPbI3钙钛矿太阳电池能量转换效率由对照器件的12.44%提高到了15.66%。

关键词: CsPbI3钙钛矿太阳电池, 小分子三苯胺衍生物, 界面修饰, 能量转换效率

Abstract: In this paper, two novel small-molecule triphenylamine derivatives were synthesized with classic Suzuki-Miyaura and Ullmann coupling reactions. The synthesized compounds are N,N-bis (4-methoxyphenyl)-4-(4-pyridyl) aniline (H432) and N,N-bis(4-methoxyphenyl) -4-[4- (cyano)-3-pyridyl] aniline (H462). The small-molecule derivatives were deposited onto FTO/c-TiO2 /m-TiO2/CsPbI3 composite films to fabricate CsPbI3 perovskite solar cells with crystal modification and surface post-treatment modification. The resulting devices were characterized and tested with SEM, J-V curves, and electrochemical impedance spectroscopy. The results show that the CsPbI3 perovskite solar cells prepared with surface post-treatment modification exhibited a significant increase in power conversion efficiency (PCE). Specifically, the PCE of CsPbI3 perovskite solar cells modified with 0.05 mol/L H432 increased from 12.44% (control device) to 15.54%, while the PCE of those modified with 0.05 mol/L H462 improved from 12.44% to 15.66%.

Key words: CsPbI3 perovskite solar cells, Small-molecule triphenylamine derivatives, Interface modification, Power conversion efficiency

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