Nanocrystalline TiO2 solar cells sensitized with InAs quantum dots

被引：439

作者：

Yu, Pingrong ^{[1
]}

Zhu, Kai ^{[1
]}

Norman, Andrew G. ^{[1
]}

Ferrere, Suzanne ^{[1
]}

Frank, Arthur J. ^{[1
]}

Nozik, Arthur J. ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Ctr Basic Sci, Golden, CO 80401 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2006年 / 110卷 / 50期

关键词：

D O I：

10.1021/jp064817b

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 report nanocrystalline TiO2 solar cells sensitized with InAs quantum dots. InAs quantum dots of different sizes were synthesized and incorporated in solar cell devices. Efficient charge transfer from InAs quantum dots to TiO2 particles was achieved without deliberate modification of the quantum dot capping layer. A power conversion efficiency of about 1.7% under 5 mW/cm(2) was achieved; this is relatively high for a nanocrystalline metal oxide solar cell sensitized with presynthesized quantum dots, but this efficiency could only be achieved at low light intensity. At one sun, the efficiency decreased to 0.3%. The devices are stable for at least weeks under room light in air.

引用

页码：25451 / 25454

页数：4

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