Solution-Processed Polymer Solar Cells with over 17% Efficiency Enabled by an Iridium Complexation Approach

作者:Wang, T (Wang, Tao)[ 1 ] ; Sun, R (Sun, Rui)[ 1 ] ; Shi, MM (Shi, Mumin)[ 1 ] ; Pan, F (Pan, Fei)[ 2 ] ; Hu, ZC (Hu, Zhicheng)[ 3 ] ; Huang, F (Huang, Fei)[ 3 ] ; Li, YF (Li, Yongfang)[ 2 ] ; Min, J (Min, Jie)[ 1,2,4 ]

ADVANCED ENERGY MATERIALS

卷: 10 期: 22

文献号: 2000590

DOI: 10.1002/aenm.202000590

出版年:JUN 2020

在线发表日期: APR 2020

文献类型:Article

摘要

The commercially available PM6 as donor materials are used widely in highly efficient nonfullerene polymer solar cells (PSCs). In this work, different concentrations of iridium (Ir) complexes (0, 0.5, 1, 2.5, and 5 mol%) are incorporated carefully into the polymer conjugated backbone of PM6 (PM6-Ir0), and a set of pi-conjugated polymer donors (named PM6-Ir0.5, PM6-Ir1, PM6-Ir2.5, and PM6-Ir5) are synthesized and characterized. It is demonstrated that the approach can rationally modify the molecular aggregations of polymer donors, effectively controlling the corresponding blend morphology and physical mechanisms, and finally improve the photovoltaic performance of the PM6-Irx-based PSCs. Among them, the best device based on PM6-Ir1:Y6 (1:1.2, w/w) exhibits outstanding power conversion efficiencies (PCEs) of 17.24% tested at Wuhan University and 17.32% tested at Institute of Chemistry, Chinese Academy of Sciences as well as a certified PCE of 16.70%, which are much higher than that of the control device based on the PM6-Ir0:Y6 blend (15.39%). This work affords an effective approach for further break through the reported champion PCE of the binary PSCs.

关键词

作者关键词:iridium complexation; morphology; polymer solar cells; power conversion efficiency

KeyWords Plus:POWER CONVERSION EFFICIENCY; CONJUGATED POLYMERS; ACCEPTORS

作者信息

通讯作者地址:

Wuhan University Wuhan Univ, Inst Adv Studies, Wuhan 430072, Peoples R China.

Chinese Academy of Sciences Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China.

Zhengzhou University Zhengzhou Univ, Minist Educ, Key Lab Mat Proc & Mold, Zhengzhou 450002, Peoples R China.

通讯作者地址: Min, J (通讯作者)

Wuhan Univ, Inst Adv Studies, Wuhan 430072, Peoples R China.

通讯作者地址: Min, J (通讯作者)

Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China.

通讯作者地址: Min, J (通讯作者)

Zhengzhou Univ, Minist Educ, Key Lab Mat Proc & Mold, Zhengzhou 450002, Peoples R China.

地址:

[ 1 ]‎ Wuhan Univ, Inst Adv Studies, Wuhan 430072, Peoples R China

[ 2 ]‎ Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[ 3 ]‎ South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China

[ 4 ]‎ Zhengzhou Univ, Minist Educ, Key Lab Mat Proc & Mold, Zhengzhou 450002, Peoples R China

电子邮件地址:min.jie@whu.edu.cn