Triphenylamine-containing linear D-A-D molecules with benzothiadiazole as acceptor unit for bulk-heterojunction organic solar cells

被引：55

作者：

Deng, Dan ^{[1
,2
]}

Yang, Yang ^{[2
]}

Zhang, Jing ^{[1
,2
]}

He, Chang ^{[2
]}

Zhang, Maojie ^{[1
,2
]}

Zhang, Zhi-Guo ^{[2
]}

Zhang, Zhanjun ^{[1
]}

Li, Yongfang ^{[2
]}

机构：

[1] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

来源：

ORGANIC ELECTRONICS | 2011年 / 12卷 / 04期

关键词：

Organic solar cells; Conjugated organic molecules; Organic semiconductors; Solution processability; Organic photovoltaic materials; FIELD-EFFECT TRANSISTORS; LOW-BAND-GAP; PHOTOVOLTAIC PROPERTIES; HYBRID SYSTEMS; EFFICIENT; OLIGOTHIOPHENE; CORE; SEMICONDUCTORS; MORPHOLOGY;

D O I：

10.1016/j.orgel.2011.01.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three solution-processable triphenylamine (TPA)-containing low band gap D-A-D molecules with benzothiadiazole (BT) as acceptor unit and TPA-(4-hexyl)thiophene (TPA-HT), TPA-(4-hexyl)thieno[3,2-b]thiophene (TPA-HTT) and bis(octyloxy)TPA-(4-hexyl)thieno[3,2-b]thiophene (boTPA-HTT) as donor units, TPA-HT-BT, TPA-HTT-BT and boTPA-HTT-BT, have been designed and synthesized for the application in the bulk-heterojunction organic solar cells (OSCs). The molecules show broad absorption band in the visible range and appropriate HOMO energy levels for the donor materials in OSCs. The OSC devices were fabricated with the molecules as donor and PC70BM as acceptor. The power conversion efficiencies of the OSCs based on TPA-HT-BT, TPA-HTT-BT and boTPA-HTT-BT reached 1.44%, 1.44% and 0.75%, respectively, under the illumination of AM. 1.5, 100 mW/cm(2). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：614 / 622

页数：9

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