A 9,9′-spirobi[9H-fluorene]-cored perylenediimide derivative and its application in organic solar cells as a non-fullerene acceptor

被引：100

作者：

Yi, Jinduo ^{[1
,2
]}

Wang, Yiling ^{[1
,2
]}

Luo, Qun ^{[1
]}

Lin, Yi ^{[3
]}

Tan, Hongwei ^{[4
]}

Wang, Hongyu ^{[2
]}

Ma, Chang-Qi ^{[1
]}

机构：

[1] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion SINANO, Printable Elect Res Ctr, SEID SIP, 398 Ruo Shui Rd, Suzhou 215123, Peoples R China

[2] Shanghai Univ, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

[3] Xian Jiaotong Liverpool Univ, Dept Chem, SEID SIP, 111 Ren Ai Rd, Suzhou 215123, Peoples R China

[4] Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2016年 / 52卷 / 08期

基金：

中国国家自然科学基金;

关键词：

ELECTRON-ACCEPTORS; CONJUGATED POLYMERS; EFFICIENCY; DONOR; PHOTOVOLTAICS;

D O I：

10.1039/c5cc08484a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A structurally non-planar molecule (SBF-PDI4) with a 9,9'-spirobi[9H-fluorene] (SBF) core and four perylenediimides (PDIs) at the periphery was designed, synthesized and characterized. This compound shows a low-lying LUMO energy level of -4.11 eV, which is similar to that of PCBM, but with intensive light absorption ability in the range 450-550 nm. A high power conversion efficiency (PCE) of 5.34% was obtained for a solution processed bulk heterojunction solar cell (BHJSC) using SBF-PDI4 as the electron acceptor and a low-band gap polymer poly[[4,8-bis[5-(2-ethylhexyl)thiophene-2-yl]benzo[1,2-b: 4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7-Th) as the electron donor. These results demonstrate that PDI derivatives with a three dimensional molecular structure could serve as high performance electron acceptors in BHJSCs.

引用

页码：1649 / 1652

页数：4

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