Low-bandgap nonfullerene acceptor based on thieno[3,2-b]indole core for highly efficient binary and ternary organic solar cells

被引：28

作者：

Xie, Liang ^{[1
]}

Zhang, Yang ^{[2
]}

Zhuang, Wenliu ^{[3
,4
]}

Jeong, Sang Young ^{[5
]}

Bian, Qingzhen ^{[6
]}

Li, Huangfen ^{[1
]}

Cao, Jiamin ^{[1
]}

Liu, Wanqing ^{[1
]}

Tan, Hua ^{[7
]}

Woo, Han Young ^{[5
]}

Zhang, Jian ^{[2
]}

Wang, Ergang ^{[4
,8
]}

机构：

[1] Hunan Univ Sci & Technol, Sch Chem & Chem Engn, Key Lab Theoret Organ Chem & Funct Mol,Minist Edu, Hunan Prov Key Lab Controllable Preparat & Funct, Xiangtan 411201, Peoples R China

[2] Guilin Univ Elect Technol, Engn Res Ctr Elect Informat Mat & Devices, Sch Mat Sci & Engn, Guangxi Key Lab Informat Mat,Minist Educ, 1st Jinji Rd, Guilin 541004, Peoples R China

[3] Guangdong Ind Polytech, Adv Res Ctr Polymer Proc Engn Guangdong Prov, Guangzhou 510300, Peoples R China

[4] Chalmers Univ Technol, Dept Chem & Chem Engn Appl Chem, SE-41296 Gothenburg, Sweden

[5] Korea Univ, KU KIST Grad Sch Converging Sci & Technol, Dept Chem, Anam Ro 145, Seoul 02841, South Korea

[6] Linkoping Univ, Dept Phys Chem & Biol IFM, Biomol & Organ Elect, S-58183 Linkoping, Sweden

[7] Changzhou Univ, Natl Expt Demonstrat Ctr Mat Sci & Engn, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Sch Mat Sci & Engn,Jiangsu Engn Lab Light Elect H, Changzhou 213164, Peoples R China

[8] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2022年 / 427卷

基金：

新加坡国家研究基金会; 瑞典研究理事会; 中国国家自然科学基金;

关键词：

Frontier energy levels; Nonfullerene acceptors; Organic solar cells; Power conversion efficiency; Thieno[3; 2-b]indole; NON-FULLERENE ACCEPTORS; ELECTRON-ACCEPTOR; CONJUGATED POLYMERS; PERFORMANCE; DESIGN; DONOR;

D O I：

10.1016/j.cej.2021.131674

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A low-bandgap nonfullerene acceptor (NFA) TIT-2FIC based on thieno[3,2-b]indole-thiophenes core has been developed. Compared with the analogue NFAs DTC(4Ph)-4FIC and IT-4F, TIT-2FIC exhibited remarkably red shifted absorption, and up-shifted HOMO energy level. In addition, TIT-2FIC showed interesting universal miscibility with the donors nonfluorinated PBDB-T and fluorinated PM6, therefore the corresponding organic solar cells achieved promising power conversion efficiencies (PCEs) of 11.80% and 13.00%, respectively, which are higher compared to the counterpart IT-4F based cells. Furthermore, the ternary PM6:TIT-2FIC:Y6 cell pronounced a high PCE of 17.22%, being significantly improved from that of 16.04% for the binary PM6:Y6 cell. Similar improvement in PCEs from 13.41% to 14.46% was also observed in the ternary PM6:TIT-2FIC:IT-4F cell with TIT-2FIC as the third component. These results indicated that TIT-2FIC is universally applicable as an acceptor with nonfluorinated or fluorinated polymer donor materials in both binary and ternary cells.

引用

页数：9

共 70 条

[51] Charge Separation from an Intra-Moiety Intermediate State in the High-Performance PM6:Y6 Organic Photovoltaic Blend [J].