Highly efficient organic solar cells based on a poly(2,7-carbazole) derivative

被引：183

作者：

Wakim, Salem ^{[1
]}

Beaupre, Serge ^{[2
]}

Blouin, Nicolas ^{[2
]}

Aich, Badrou-Reda ^{[1
,2
]}

Rodman, Sheila ^{[3
]}

Gaudiana, Russell ^{[3
]}

Tao, Ye ^{[1
]}

Leclerc, Mario ^{[2
]}

机构：

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

[2] Univ Laval, Canada Res Chair Electroact & Photoact Polymers, Dept Chim, Quebec City, PQ G1K 7P4, Canada

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

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2009年 / 19卷 / 30期

关键词：

POLYMER PHOTOVOLTAIC CELLS; CHARGE-TRANSPORT; MOLECULAR-WEIGHT; PERFORMANCE; POLY(3-HEXYLTHIOPHENE); DEPENDENCE; METHANOFULLERENE; MORPHOLOGY; MOBILITY; NETWORK;

D O I：

10.1039/b901302d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have studied the utilization of PCDTBT, an alternating poly(2,7-carbazole) derivative, in organic bulk heterojunction solar cells. The effect of polymer molecular weight, PCDTBT:[60] PCBM ratio, and active layer thickness on the device performance is reported. The best performance was obtained when the number-average molecular weights (M-n) are around 20 kDa with a polydispersity index around 2.2. Both PCDTBT:[60] PCBM ratio and active layer thickness affect the light absorption and the charge transport properties. By optimizing these two parameters, power conversion efficiency (PCE) up to 4.35% was reached under calibrated AM1.5G illumination of 100 mW cm(-2). When blended with [70] PCBM, PCDTBT exhibited a PCE up to 4.6%.

引用

页码：5351 / 5358

页数：8

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