Revealing the stability origins of 596 days-humidity-stable semitransparent perovskite solar cells

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外文摘要：Hybrid organic-inorganic perovskites(HOIPs)hold promise in the field of optoelectronics due to their excellent photoelectric conversion efficiency.However,the ion migration and hygroscopicity of these perovskite solar cells need to be addressed.Here,we presented semitransparent perovskite solar cells(ST-PSCs)using hole transport layer(HTL)combined with polyaniline(PANI)to stabilize HTL/perovskite interface,achieving a humidity durability(RH,50％-90％)for 596 days(14304 h)without encapsulation.Moreover,the decrease in hydrolysis products(LiF)showed the interaction between PANI with the addi-tives in HTL dramatically inhibited the water uptake and corrosion on MAPbI3 layer.The PANI modified samples had a higher I/Pb ratio and lower trap state density,which indicated the passivation effect of PANI on the uncoordinated Pb2+and iodine vacancies.Subsequently,PANI successfully stabilized the interface and perovskite by inhibiting the formation of Pb0 and Au migration as long period storage.This work presented an interfacial design to develop HOIP in air with high humidity stability.

外文关键词：

HTL/perovskite interfacePolyaniline-passivationHumidity-degradation mechanismIon migration

作者：

Tian Chen、Ying Yang、Congtan Zhu、Weihuang Lin、Qilin Dai、Xueyi Guo

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作者单位：

School of Metallurgy and Environment,Central South University,Changsha 410083,Hunan,China

Department of Chemistry,Physics and Atmospheric Sciences,Jackson State University,Jackson,MS 39217,USA

基金：

National Key R&D Program of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Hunan ProvinceGuangdong Science and Technology Planning Project

项目编号：

2023YFC3906103617741692022JJ307572018B030323010

出版年：

2024

DOI：

10.1016/j.jechem.2024.02.057

能源化学

中国科学院大连化学物理研究所中国科学院成都有机化学研究所

能源化学

CSTPCDEI

影响因子：0.654

ISSN：2095-4956

年,卷(期)：2024.94(7)