{"title":"Constructing efficient organic solar cells by highly volatile solid additives with controlled phase morphology","authors":"Yueheng Liu, Yetai Cheng, Shenbo Zhu, Zhengdong Wei, Chenyi Zhang, Shuyue Song, Xinyue Cui, Ya-Nan Chen, Andong Zhang, Yahui Liu, Lu Hao, Huawei Hu, Zhishan Bo","doi":"10.1039/d4cc04675g","DOIUrl":null,"url":null,"abstract":"Optimizing the structure of organic solar cells (OSCs) is the key to improving their efficiency and stability. In this study, we introduce the use of highly volatile and low-cost solid additives, namely 2-phenylthiophene (PT) and 2-(3,4,5-trifluorophenyl)thiophene (TFT), to modulate the morphology optimization and enhance the efficiency of OSCs. The inclusion of PT and TFT effectively influences the aggregation behavior of D18:L8-BO during the film-forming process, increase the time of acceptor molecules, and promotes the formation of a well-organized fiber network structure. Consequently, PT and TFT-treated D18:L8-BO-based OSCs achieved power conversion efficiencies of 18.28% and 19.19%, respectively. This study provides a straightforward approach for achieving structural optimization and efficient photovoltaic performance of OCSs.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Communications","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4cc04675g","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Constructing efficient organic solar cells by highly volatile solid additives with controlled phase morphology
Optimizing the structure of organic solar cells (OSCs) is the key to improving their efficiency and stability. In this study, we introduce the use of highly volatile and low-cost solid additives, namely 2-phenylthiophene (PT) and 2-(3,4,5-trifluorophenyl)thiophene (TFT), to modulate the morphology optimization and enhance the efficiency of OSCs. The inclusion of PT and TFT effectively influences the aggregation behavior of D18:L8-BO during the film-forming process, increase the time of acceptor molecules, and promotes the formation of a well-organized fiber network structure. Consequently, PT and TFT-treated D18:L8-BO-based OSCs achieved power conversion efficiencies of 18.28% and 19.19%, respectively. This study provides a straightforward approach for achieving structural optimization and efficient photovoltaic performance of OCSs.
期刊介绍:
ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.