Impact of Molecular Weight on Molecular Doping Efficiency of Conjugated Polymers and Resulting Thermoelectric Performances

Sang Eun Yoon; Bomi Kim; So Yeon ChunSang Yeon LeeDohyeon JeonMinju KimSolin LeeBo Eun SeoKang Suh ChoiFelix Sunjoo KimTaekyeong KimHyungtak SeoKyungwon KwakJong H. KimBongSoo Kim

首页> 外文期刊>Advanced functional materials >Impact of Molecular Weight on Molecular Doping Efficiency of Conjugated Polymers and Resulting Thermoelectric Performances

【24h】

Impact of Molecular Weight on Molecular Doping Efficiency of Conjugated Polymers and Resulting Thermoelectric Performances

机译：Impact of Molecular Weight on Molecular Doping Efficiency of Conjugated Polymers and Resulting Thermoelectric Performances

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

The effect of molecular weight of a series of conjugated polymers (CPs) on the doping efficiency, electrical conductivity, and related thermoelectric properties of doped CPs is studied. Low (L), medium (M), and high (H) molecular weight batches of PDFD-T polymers, based on difluorobenzothiadiazole and dithienosilole moieties, are synthesized and denoted as PDFDT( L), PDFD-T(M), and PDFD-T(H), respectively. Furthermore, to compare the effects of different donor moieties, donor units of PDFD-T(L) are structurally modified from thiophene to thienothiophene (TT) and dithienothiophene (DTT), denoted as PDFD-TT(L) and PDFD-DTT(L), respectively. After doping the CPs with FeCl_3, d-PDFD-T(H) exhibits an electrical conductivity of 402.9 S cm~(-1), which is significantly higher than those of d-PDFD-T(L), d-PDFD-T(M), d-PDFD-TT(L), and d-PDFD-DTT(L). The highest power factor of 101.1 μW m~(-1) K~(-2) is achieved through organic thermoelectric devices fabricated using PDFD-T(H). Through various characterizations, it is demonstrated that CPs with a high molecular weight tend to have a high carrier mobility while maintaining their original crystallinity and good charge transport pathways even after doping. Therefore, it is suggested that optimizing the molecular weight of CPs is an essential strategy for maximal power generation from their doped CP films.

著录项

来源
《Advanced functional materials》 |2022年第32期|2202929.1-2202929.13|共13页
作者
Sang Eun Yoon; Bomi Kim; So Yeon ChunSang Yeon LeeDohyeon JeonMinju KimSolin LeeBo Eun SeoKang Suh ChoiFelix Sunjoo KimTaekyeong KimHyungtak SeoKyungwon KwakJong H. KimBongSoo Kim;
展开▼
作者单位

Department of Molecular Science and Technology Ajou University Suwon 16499, Republic of Korea;

Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919, Republic of Korea,Graduate School of Semiconductor Materials and Device Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919, Rep;

Department of Chemistry Korea University Seoul 02841, Republic of Korea,Center for Molecular Spectroscopy and Dynamics Institute for Basic Science (IBS) Korea University Seoul 02841, Republic of KoreaDepartment of Materials Science and Engineering and Department of Energy Systems Research Ajou University Suwon 16499, Republic of KoreaDepartment of Physics Hankuk University of Foreign Studies Yongin 17035, Republic of KoreaSchool of Chemical Engineering and Materials Science Chung-Ang University Seoul 06974, Republic of KoreaDepartment of Chemistry Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919, Republic of Korea;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
conjugated polymers; electrical conductivity; molecular dopants; molecular weight; thermoelectric effect;

Impact of Molecular Weight on Molecular Doping Efficiency of Conjugated Polymers and Resulting Thermoelectric Performances

摘要

著录项

相关主题

期刊订阅