High-performance wide-bandgap perovskite solar cells using poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) as the electron-transport layer

IF 2 3区化学 Q4 CHEMISTRY, PHYSICAL

Chemical Physics Pub Date : 2024-10-11 DOI:10.1016/j.chemphys.2024.112488

Qianqian Zeng , Xi Liu , Lei Wang , Shuangcui Li , Xiaoyin Xie , Guanchen Liu , Zhihai Liu

引用次数: 0

Abstract

We used work-function-tuned poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as the electron-transport layer for wide-bandgap (1.74 eV) perovskite solar cells (PSCs). With the coating of polyethylenimine, the work function of PEDOT:PSS was modified from −5.03 to −4.05 eV, which enabled efficient electron transportation from perovskite absorber to cathode. With this technique, the standard-structured n-i-p PSCs showed an average power-conversion-efficiency (PCE) of 18.6 %, which is higher than that (17.5 %) of inverted PSCs with PEDOT:PSS as the hole-transport layer. Moreover, the long-term stability of the PSCs was enhanced with the PCE degradation significantly suppressed from 29.7 % to 15.6 % after a 10 days’ measurement in ambient.

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使用聚(3,4-亚乙二氧基噻吩):聚(苯乙烯磺酸)作为电子传输层的高性能宽带隙光伏太阳能电池

我们使用功函数调节型聚(3,4-亚乙二氧基噻吩):聚(苯乙烯磺酸)(PEDOT:PSS)作为宽带隙（1.74 eV）过氧化物太阳能电池（PSC）的电子传输层。涂覆聚乙烯亚胺后，PEDOT:PSS 的功函数从 -5.03 eV 变为 -4.05 eV，从而实现了从过氧化物吸收体到阴极的高效电子传输。利用这种技术，标准结构的 ni-p PSCs 平均功率转换效率（PCE）达到 18.6%，高于以 PEDOT:PSS 作为空穴传输层的倒置 PSCs（17.5%）。此外，PSCs 的长期稳定性也得到了提高，在环境中测量 10 天后，PCE 的降解率从 29.7% 显著降至 15.6%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

4.60

自引率

4.30%

发文量

278

审稿时长

39 days

期刊介绍： Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. In this journal, experiments are related to theory, and in turn theoretical papers are related to present or future experiments. Subjects covered include: spectroscopy and molecular structure, interacting systems, relaxation phenomena, biological systems, materials, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics. Computational chemistry studies of routine character are not appropriate for this journal.