Balancing the Efficiency and Synthetic Accessibility of Organic Solar Cells with Isomeric Acceptor Engineering

Author:

Yang Qianguang12,Chen Haiyan13,Lv Jie14,Huang Peihao1,Han Deman5,Deng Wanyuan6,Sun Kuan3,Kumar Manish7,Chung Sein8,Cho Kilwon8,Hu Dingqin1,Dong Haiyan1,Shao Li13,Zhao Fuqing1,Xiao Zeyun12,Kan Zhipeng9,Lu Shirong135ORCID

Affiliation:

1. Chongqing Institute of Green and Intelligent Technology, Chongqing School University of Chinese Academy of Sciences (UCAS Chongqing) Chinese Academy of Sciences Chongqing 400714 P. R. China

2. University of Chinese Academy of Sciences Beijing 100049 P. R. China

3. Chongqing University Chongqing 400044 P. R. China

4. Hoffmann Institute of Advanced Materials Shenzhen Polytechnic 7098 Liuxian Boulevard Shenzhen 518055 P. R. China

5. Department of Material Science and Technology Taizhou University Taizhou 318000 P. R. China

6. Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou Beijing 510641 P. R. China

7. Pohang Accelerator Laboratory Pohang University of Science and Technology Pohang 37673 North Korea

8. Department of Chemical Engineering Pohang University of Science and Technology Pohang 37673 South Korea

9. School of Physical Science and Technology Guangxi University Nanning 530004 P. R. China

Abstract

AbstractWith the continuous development of organic semiconductor materials and on‐going improvement of device technology, the power conversion efficiencies (PCEs) of organic solar cells (OSCs) have surpassed the threshold of 19%. Now, the low production cost of organic photovoltaic materials and devices have become an imperative demand for its practical application and future commercialization. Herein, the feasibility of simplified synthesis for cost‐effective small‐molecule acceptors via end‐cap isomeric engineering is demonstrated, and two constitutional isomers, BTP‐m‐4Cl and BTP‐o‐4Cl, are synthesized and compared in parallel. These two non‐fullerene acceptors (NFAs) have very similar optoelectronic properties but nonuniform morphological and crystallographic characteristics. Consequently, the OSCs composed of PM6:BTP‐m‐4Cl realize PCE of 17.2%, higher than that of the OSCs with PM6:BTP‐o‐4Cl (≈16%). When ternary OSCs are fabricated with PM6:BTP‐m‐4Cl:BTP‐o‐4Cl, the averaged PCE value reaches 17.95%, presenting outstanding photovoltaic performance. Most excitingly, the figure of merit (FOM) values of PM6:BTP‐m‐4Cl, PM6:BTP‐o‐4Cl, and PM6:BTP‐m‐4Cl:BTP‐o‐4Cl based devices are 0.190, 0.178, and 0.202 respectively. The FOM values of these systems are all among the top ones of the current high‐efficiency OSC systems, revealing high cost‐effectiveness of the two NFAs. This work provides a general but accessible strategy to minimize the efficiency‐cost gap and promises the economic prospects of OSCs.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Chongqing

National Key Research and Development Program of China

Publisher

Wiley

Subject

General Physics and Astronomy,General Engineering,Biochemistry, Genetics and Molecular Biology (miscellaneous),General Materials Science,General Chemical Engineering,Medicine (miscellaneous)

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