Effect of mixed solvents on PCDTBT:PC70BM based solar cells

被引：81

作者：

Alem, Salima ^{[1
]}

Chu, Ta-Ya ^{[1
]}

Tse, Shing C. ^{[1
]}

Wakim, Salem ^{[1
]}

Lu, Jianping ^{[1
]}

Movileanu, Raluca ^{[1
]}

Tao, Ye ^{[1
]}

Belanger, Francis ^{[2
]}

Desilets, Denis ^{[2
]}

Beaupre, Serge ^{[3
]}

Leclerc, Mario ^{[3
]}

Rodman, Sheila ^{[4
]}

Waller, David ^{[4
]}

Gaudiana, Russell ^{[4
]}

机构：

[1] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada

[2] St Jean Photochem, St Jean, PQ J3B 8J8, Canada

[3] Univ Laval, Canada Res Chair Elect & Photoact Polymers, Quebec City, PQ, Canada

[4] Konarka Technol Inc, Lowell, MA 01852 USA

来源：

ORGANIC ELECTRONICS | 2011年 / 12卷 / 11期

关键词：

Solar cell; Bulk heterojunction; Polymers; Polycarbazole; Cosolvents; Morphology; DONOR-ACCEPTOR HETEROJUNCTIONS; OPEN-CIRCUIT VOLTAGE; PHOTOVOLTAIC CELLS; POLYMER; EFFICIENCY; MORPHOLOGY; NETWORK; DEPENDENCE; SEPARATION; CONVERSION;

D O I：

10.1016/j.orgel.2011.07.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the effect of solvents on the morphology, charge transport and device performance of poly[N-9 ''-hepta-decanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT) and [6,6]-phenyl C71-butyric acid methyl ester (PC70BM) based solar cells. To carry out this investigation, chloroform and 1,2-dichlorobenzene were chosen as good solvents of the two compounds. Films prepared with chloroform exhibit larger domains than those prepared with 1,2-dichlorobenzene and their size increases with the amount of PC70BM. Fine tuning of the domain size was realized by using a solvent of mixed chloroform and 1,2-dichlorobenzene. At a mixing ratio of 50%:50%, a power conversion efficiency of 6.1% was achieved on PCDTBT:PC70BM (1:3) devices with an active area of 1 cm(2), under air mass 1.5 global (AM 1.5 G) irradiation at 100 mW/cm(2). Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.

引用

页码：1788 / 1793

页数：6

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