{"title":"High-efficiency organic–silicon heterojunction solar cells with high work function PEDOT:F-based hole-selective contacts†","authors":"Xinliang Lou, Qunyu Bi, Yifan Diao, Zhao Wu, Kun Gao, Xinyu Wang, Dacheng Xu, Jing Wang, Hong Lin, Junjie Xie, Kun Li, Wenhao Li, Shibo Wang, Wei Shi, Fengxian Cao, Chunfang Xing, Wenhao Li, Xiaofeng Wu, Tengyue Hu, Ruxin Guo, Weiyu Shen, Niuwa Yang, Hao Tian, Chuanxiao Xiao, Guifang Xu, Xiaohong Zhang and Xinbo Yang","doi":"10.1039/D4TA08449G","DOIUrl":null,"url":null,"abstract":"<p >Efficient and stable organic–silicon heterojunction solar cells are highly desirable. In this work, solution-processed poly(3,4-ethylenedioxythiophene):perfluorinated sulfonic acid (PEDOT:F) was investigated as a hole-selective contact for crystalline silicon (c-Si) solar cells. The optoelectronic properties, surface passivation and contact resistivity of PEDOT:F-based contacts on c-Si were investigated and optimized. The performance of the PEDOT:F-based hole-selective contact was verified on p-type c-Si solar cells. A record efficiency of 21.6% was achieved for an organic–silicon heterojunction solar cell featuring a full-area Al<small><sub>2</sub></small>O<small><sub>3</sub></small>/PEDOT:F/Ag rear contact for hole collection. The device displayed excellent environmental stability, retaining 85% of its initial efficiency after exposure to air for 120 days.</p>","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":" 11","pages":" 7777-7785"},"PeriodicalIF":10.7000,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/ta/d4ta08449g","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Efficient and stable organic–silicon heterojunction solar cells are highly desirable. In this work, solution-processed poly(3,4-ethylenedioxythiophene):perfluorinated sulfonic acid (PEDOT:F) was investigated as a hole-selective contact for crystalline silicon (c-Si) solar cells. The optoelectronic properties, surface passivation and contact resistivity of PEDOT:F-based contacts on c-Si were investigated and optimized. The performance of the PEDOT:F-based hole-selective contact was verified on p-type c-Si solar cells. A record efficiency of 21.6% was achieved for an organic–silicon heterojunction solar cell featuring a full-area Al2O3/PEDOT:F/Ag rear contact for hole collection. The device displayed excellent environmental stability, retaining 85% of its initial efficiency after exposure to air for 120 days.
期刊介绍：
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.
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