Optimizing CsPbBr3 perovskite solar cell interface and performance through tetraphenylethene derivatives

IF 9.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Chinese Chemical Letters Pub Date : 2025-01-09 DOI:10.1016/j.cclet.2025.110838

Sheng Tang , Mingyue Liao , Weihai Sun , Jihuai Wu , Jiamin Lu , Yiming Xie

引用次数: 0

Abstract

Recently, CsPbBr₃ perovskite solar cells (PSCs) have garnered attention due to cost-effectiveness and reliability. However, hole transport limitations lead to charge recombination and lower power conversion efficiency (PCE). Defects in the CsPbBr₃ layer, poor hole transport at the interface with carbon electrodes, and energy level differences hinder performance. Optimizing the perovskite layer using electron-donating organic molecules containing -NH₂ groups enhances efficiency and stability by passivating defects and modulating lattice structure. In this work, tetra(4-aminophenyl)ethylene (TPE) and tetra(4-aminobiphenyl)ethylene (TPE-Ph) were employed to optimize the CsPbBr₃/carbon electrode interface. Their strong electron-donating properties and amino groups facilitate hole transfer and defect passivation, boosting PCE to 9.38% and enhancing stability.

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来源期刊

Chinese Chemical Letters 化学-化学综合

CiteScore

14.10

自引率

15.40%

发文量

8969

审稿时长

1.6 months

期刊介绍： Chinese Chemical Letters (CCL) (ISSN 1001-8417) was founded in July 1990. The journal publishes preliminary accounts in the whole field of chemistry, including inorganic chemistry, organic chemistry, analytical chemistry, physical chemistry, polymer chemistry, applied chemistry, etc.Chinese Chemical Letters does not accept articles previously published or scheduled to be published. To verify originality, your article may be checked by the originality detection service CrossCheck.