Abdullah Adeoba, Xiangyu Shen, Fuzhen Bi, Jianan Niu, Mingxin Sun, Shuguang Wen, Xichang Bao
{"title":"Simple oxime functionalized fluorene polymers for organic solar cells","authors":"Abdullah Adeoba, Xiangyu Shen, Fuzhen Bi, Jianan Niu, Mingxin Sun, Shuguang Wen, Xichang Bao","doi":"10.1039/d4py00919c","DOIUrl":null,"url":null,"abstract":"Conjugated polymers with simple chemical structure are attractive for the design of high efficiency wide bandgap (WBG) donor materials used in non-fullerene organic solar cells. Fluorene is one of the most common structures in organic opto-electronic materials. It is hereby used, for the first time, functionalized with oxime group to construct the acceptor unit of D-A polymer donors with a BDT donor unit. The polymers, PBFO-H and PBFO-F, had low-lying HOMO with a wide bandgap of 2.08 eV and are soluble in chloroform for easy processing. Organic solar cells were constructed using the polymers and non-fullerene Y6 acceptor. The fluorinated polymer (PBFO-F) had better photovoltaic properties over the non-fluorinated polymer in overall, with Jsc, Voc, FF values of 23.17 mA/cm<small><sup>2</sup></small>, 0.84 V, and 55.2 % respectively, and a high PCE of 10.71 %. These results demonstrate that fluorene is promising in constructing acceptor units for D-A wide bandgap polymers.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":null,"pages":null},"PeriodicalIF":4.1000,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4py00919c","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Conjugated polymers with simple chemical structure are attractive for the design of high efficiency wide bandgap (WBG) donor materials used in non-fullerene organic solar cells. Fluorene is one of the most common structures in organic opto-electronic materials. It is hereby used, for the first time, functionalized with oxime group to construct the acceptor unit of D-A polymer donors with a BDT donor unit. The polymers, PBFO-H and PBFO-F, had low-lying HOMO with a wide bandgap of 2.08 eV and are soluble in chloroform for easy processing. Organic solar cells were constructed using the polymers and non-fullerene Y6 acceptor. The fluorinated polymer (PBFO-F) had better photovoltaic properties over the non-fluorinated polymer in overall, with Jsc, Voc, FF values of 23.17 mA/cm2, 0.84 V, and 55.2 % respectively, and a high PCE of 10.71 %. These results demonstrate that fluorene is promising in constructing acceptor units for D-A wide bandgap polymers.
期刊介绍:
Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.