Bulk heterojunction solar cells with internal quantum efficiency approaching 100%

被引：3688

作者：

Park, Sung Heum ^{[1
,2
]}

Roy, Anshuman ^{[1
]}

Beaupre, Serge ^{[3
]}

Cho, Shinuk ^{[1
,2
]}

Coates, Nelson ^{[1
]}

Moon, Ji Sun ^{[1
,2
]}

Moses, Daniel ^{[1
]}

Leclerc, Mario ^{[3
]}

Lee, Kwanghee ^{[1
,2
]}

Heeger, Alan J. ^{[1
,2
]}

机构：

[1] Univ Calif Santa Barbara, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA

[2] Gwangju Inst Sci & Technol, Heeger Ctr Adv Mat, Kwangju 500712, South Korea

[3] Univ Laval, Dept Chem, Quebec City, PQ G1K 7P4, Canada

来源：

NATURE PHOTONICS | 2009年 / 3卷 / 05期

关键词：

PHOTOINDUCED ELECTRON-TRANSFER; POLYMER PHOTOVOLTAIC CELLS; MORPHOLOGY; PERFORMANCE; POLYTHIOPHENE; NETWORK; DESIGN;

D O I：

10.1038/NPHOTON.2009.69

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the fabrication and measurement of solar cells with 6% power conversion efficiency using the alternating co-polymer, poly[N-9 ''-hepta-decanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole) (PCDTBT) in bulk heterojunction composites with the fullerene derivative [6,6]-phenyl C-70-butyric acid methyl ester (PC70BM). The PCDTBT/PC70BM solar cells exhibit the best performance of any bulk heterojunction system studied to date, with J(SC) = 10.6 mA cm(-2), V-OC = 0.88 V, FF = 0.66 and eta(e) = 6.1% under air mass 1.5 global (AM 1.5 G) irradiation of 100 mW cm(-2). The internal quantum efficiency is close to 100%, implying that essentially every absorbed photon results in a separated pair of charge carriers and that all photogenerated carriers are collected at the electrodes.

引用

页码：297 / U5

页数：7

共 43 条

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