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| 丁二烯基为π桥的三苯胺衍生物改善CsPbI3太阳电池性能 |
| Triphenylamine Derivatives with Butadienyl as the π-Bridge Improve the Performance of CsPbI? Perovskite Solar Cells |
| 投稿时间：2026-04-02 修订日期：2026-05-18 |
| DOI： |
| 中文关键词: 小分子三苯胺衍生物 CsPbI3太阳电池 能量转换效率 能级 滴加修饰 |
| 英文关键词:Small molecule triphenylamine derivatives CsPbI3 solar cells PCE Energy levels Dropped modification |
| 基金项目:河北省自然科学基金项目(No. B2022208001)资助 |
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| 中文摘要: |
| 本文通过Ullmann、Vilsmeier–Haack、Witting和Heck等经典反应, 设计并合成了2种以三苯胺为给体(D)、丁二烯基为π桥、氰基吡啶基团或吡啶基团为电子受体(A)的全新D-π-A结构的小分子三苯胺衍生物4-[N,N-二(4-甲氧苯基)氨基]苯基-(1E,3E)-1,3-丁二烯-1-基-4-吡啶(Y06)和4-[N,N-二(4-甲氧苯基)氨基]苯基-(1E,3E)-1,3-丁二烯-1-基-4-吡啶(Y07)。分别通过结晶修饰和滴加修饰方法对CsPbI3薄膜进行修饰, 制备相应的CsPbI3太阳电池。通过原子力显微镜(AFM)、电流密度-电压曲线(J-V)和外量子效率(EQE)等测试方法对CsPbI3薄膜和太阳电池器件性能进行表征与测试。实验结果表明, 采用结晶修饰和滴加修饰制备的CsPbI3钙钛矿太阳电池的能量转换效率(PCE)均有提升, 0.015 mol/L Y06或Y07进行滴加修饰的CsPbI3太阳电池PCE最佳, 分别由对照器件的12.67%提高至15.28%和15.53%。 |
| 英文摘要: |
| In this paper, two novel small-molecule triphenylamine derivatives with a D-π-A structure were designed and synthesized through classical reactions including Ullmann, Vilsmeier–Haack, Wittig, and Heck reactions. These derivatives feature triphenylamine as the donor (D), a butadienyl group as the π-bridge, and either a cyanopyridine group or a pyridine group as the electron acceptor (A). The two compounds are: 4-[N,N-bis(4-methoxyphenyl)amino]phenyl-(1E,3E)-1,3-butadien-1-yl-4-pyridine (Y06) and 4-[N,N-bis(4-methoxyphenyl)amino]phenyl-(1E,3E)-1,3-butadien-1-yl-4-pyridine (Y07). The CsPbI? thin films were modified by crystallization modification and dropwise addition modification using Y06 or Y07, and the corresponding CsPbI? solar cells were fabricated. The CsPbI? thin films and the performance of the solar cell devices were characterized and tested by atomic force microscopy (AFM), current density–voltage (J-V) curves, and external quantum efficiency (EQE) measurements. The experimental results show that the power conversion efficiency (PCE) of CsPbI? perovskite solar cells prepared by both crystallization modification and dropped modification is improved. Specifically, the PCE of CsPbI3 solar cells modified with 0.015 mol/L Y06 increases from 12.67% (Control device) to 15.28%, while the PCE of those modified with 0.015 mol/L Y07 improves from 12.65% to 15.53%. |
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