Decoupled self-assembled monolayer and perovskite deposition for efficient flexible solar modules

IF 47.3 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Pub Date : 2026-10-22 DOI:10.1126/science.aef9745

Yeyong Wu, Xikun Zhang, Tiankai Zhang, Guiying Xu, Yunxiu Shen, Chengxin Guo, Qing Miao, Junyuan Ding, Yue Yin, Qinrong Cheng, Wen Liu, Xiaoxiao Wu, Kaiqiang Chen, Wenwen Kou, Zhiyun Cao, Haiyang Chen, Weijie Chen, Yujin Chen, Feng Gao, Yaowen Li, Yongfang Li

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Abstract

The power conversion efficiency (PCE) and stability of flexible perovskite solar modules (PSMs) are less than those of their rigid devices because surface hydroxyls desorption on flexible substrates, which disrupts self-assembled monolayer (SAM) anchoring and perovskite crystallization. We developed a decoupled SAM-perovskite codeposition strategy that accelerates SAM anchoring by reducing the SAM-perovskite interaction and ameliorates perovskite crystallization. The certified PCE with phenethylammonium iodide as the passivation molecule was 20.2% on PSMs with device areas of 750 cm². With 1,3-diaminopropane dihydroiodide as the passivator, the PCE of 22.0% for a device area of 14.55 cm² decreased by 8% after 1044 hours under maximum power point tracking at 85°C and 65% relative humidity. The devices pass all sequences of an international commercialization assessment standard for flexible portable PSMs.

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高效柔性太阳能组件的解耦自组装单层和钙钛矿沉积

柔性钙钛矿太阳能组件（psm）的功率转换效率（PCE）和稳定性低于刚性器件，因为柔性衬底上的表面羟基解吸破坏了自组装单层（SAM）锚定和钙钛矿结晶。我们开发了一种解耦的SAM-钙钛矿共沉积策略，通过减少SAM-钙钛矿相互作用和改善钙钛矿结晶来加速SAM的锚定。以苯乙基碘化铵为钝化分子的PCE在器件面积为750cm2的psm上的钝化率为20.2%。使用1,3-二氨基丙烷作为钝化剂，在85°C和65%相对湿度下最大功率点跟踪1044小时后，器件面积为14.55 cm 2的PCE为22.0%，下降了8%。该设备通过了柔性便携式psm国际商业化评估标准的所有序列。

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

Science 综合性期刊-综合性期刊

CiteScore

61.10

自引率

0.90%

发文量

审稿时长

2.1 months

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