The Synthesis of a Multiple D–A Conjugated Macrocycle and Its Application in Organic Photovoltaic

Author:

Liu Wei1,Zhang Huotian2,Liang Songting1,Wang Tong3,He Siqing1,Hu Yunbin1,Zhang Rui2,Ning Haoqing3,Ren Jie4,Bakulin Artem3,Gao Feng2,Yuan Jun1ORCID,Zou Yingping1

Affiliation:

1. College of Chemistry and Chemical Engineering Central South University 410083 Changsha P. R. China

2. Department of Physics Chemistry and Biology Linköping University SE-581 83 Linköping Sweden

3. Department of Chemistry and Centre for Processable Electronics Imperial College London W12 0BZ London United Kingdom

4. MOE Key Laboratory of Macromolecular Synthesis and Functionalization International Research Center for X Pol-ymers Department of Polymer Science and Engineering Zhejiang University 310027 Hangzhou P. R. China

Abstract

AbstractAs a novel class of materials, D–A conjugated macrocycles hold significant promise for chemical science. However, their potential in photovoltaic remains largely untapped due to the complexity of introducing multiple donor and acceptor moieties into the design and synthesis of cyclic π‐conjugated molecules. Here, we report a multiple D–A ring‐like conjugated molecule (RCM) via the coupling of dimer molecule DBTP‐C3 as a template and thiophenes in high yields. RCM exhibits a narrow optical gap (1.33 eV) and excellent thermal stability, and shows a remarkable photoluminescence yield (ΦPL) of 11.1 % in solution, much higher than non‐cyclic analogues. Organic solar cell (OSC) constructed with RCM as electron acceptor shows efficient charge separation at donor‐acceptor band offsets and achieves a power conversion efficiency (PCE) of 14.2 %‐approximately fourfold higher than macrocycle‐based OSCs reported so far. This is partly due to low non‐radiative voltage loss down to 0.20 eV and a high electroluminescence yield (ΦEL) of 4×10−4. Our findings emphasize the potential of D–A cyclic conjugated molecules in advancing organic photovoltaic technology.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Hunan Province

Publisher

Wiley

Subject

General Medicine

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3