Low HOMO isoindigo based small molecule for high open-circuit voltage 1.0V solution processed organic solar cells

被引：26

作者：

Liu, Qian ^{[1
,2
]}

Du, Zhengkun ^{[2
]}

Chen, Weichao ^{[2
]}

Sun, Liang ^{[2
]}

Chen, Yanhua ^{[1
,2
]}

Sun, Mingliang ^{[1
]}

Yang, Renqiang ^{[2
]}

机构：

[1] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Shandong, Peoples R China

[2] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Shandong, Peoples R China

来源：

SYNTHETIC METALS | 2013年 / 178卷

基金：

中国国家自然科学基金;

关键词：

Small molecules; Isoindigo; Organic solar cells; High open-circuit voltage; POWER-CONVERSION EFFICIENCY; PHOTOVOLTAIC CELLS; CONJUGATED SYSTEMS; ACCEPTOR; UNIT;

D O I：

10.1016/j.synthmet.2013.06.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One isoindigo and triphenylamine (TPA) based small molecule was synthesized by Suzuki coupling reaction. The obtained molecule was characterized by H-1 NMR C-13 NMR and MS. The obtained molecule absorbs light from 400 to 743 nm in thin solid film. The band-gaps of the resulting molecule calculated from the absorption onset and cyclic voltammetry are respectively around 1.67 eV and 1.60 eV. Photovoltaic cell by using the blend of the obtained small molecule and [6,6]-phenyl-C-61 butyric acid methyl ester (PCBM) as an active layer was fabricated by spin-coating method. The solar cells show open-circuit voltage (V-oc) of 1.0V with maximum power conversion efficiency 0.61%. This high open-circuit voltage is among the highest in literatures for solution processed small molecule organic solar cells. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：38 / 43

页数：6

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