Broadband Absorbing Bulk Heterojunction Photovoltaics Using Low-Bandgap Solution-Processed Quantum Dots

被引：111

作者：

Noone, Kevin M. ^{[1
]}

Strein, Elisabeth ^{[1
]}

Anderson, Nicholas C. ^{[1
]}

Wu, Pei-Tzu ^{[2
]}

Jenekhe, Samson A. ^{[1
,2
]}

Ginger, David S. ^{[1
]}

机构：

[1] Univ Washington, Dept Chem, Seattle, WA 98195 USA

[2] Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA

来源：

NANO LETTERS | 2010年 / 10卷 / 07期

关键词：

Quantum dot; nanocrystal; bulk heterojunction; photoinduced absorption; solar cell; photovoltaic; lead sulfide diode; PIA; POLYMER SOLAR-CELLS; PHOTOINDUCED CHARGE-TRANSFER; INFRARED PHOTOVOLTAICS; EFFICIENT; COMPOSITES; NANOWIRES; BLENDS;

D O I：

10.1021/nl1013663

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We describe bulk heterojunction (BHJ) solar cells containing blends of colloidal PbS nanocrystal quantum dots with several new donor acceptor conjugated polymers Using photoinduced absorption spectroscopy we found that blends of PbS quantum dots with one polymer, poly(2,3-didecyl-quinoxaline-5,8-diyl-alt-N-octyldithieno[3,2-b.2',3"-d]pyrrole) (PDTPQx), produce significantly more photoinduced charge than blends of PbS with the other donor acceptor polymers or with traditionally studied polymers like (2-methoxy-5-(3',7'-dimethyloctyloxy)-para-phenylene vinylene) (MDMO-PPV) and poly(3-hexylthiophene) (P3HT) Photovoltaic devices made with PDTPQx/PbS blends exhibit power conversion efficiencies 10-100 times larger than previously reported BHJ blends made with IR-absorbing quantum

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页码：2635 / 2639

页数：5

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