Enhancing the Conversion Efficiency of Semiconductor Sensitized Solar Cells via the Cosensitization of Dual-Sized Quantum Dots

Dual-sized CdS quantum dots were employed as light harvesters of solar cells to achieve high power conversion efficiency. Chemical bath deposition and annealing treatment were adopted to produce quantum dots with different sizes. The strategy of cosensitization by dual-sized CdS quantum dots was fou...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2012-08, Vol.51 (30), p.10074-10078
Main Authors: Song, Jun-Guo, Song, Xin, Ling, Tao, Du, Xi-Wen, Qiao, Shi Zhang
Format: Article
Language:English
Subjects:
Applied sciences
Band structure of solids
Cadmium sulfides
Chemical engineering
Energy conversion efficiency
Exact sciences and technology
Photovoltaic cells
Quantum dots
Semiconductors
Solar cells
Strategy
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Summary:Dual-sized CdS quantum dots were employed as light harvesters of solar cells to achieve high power conversion efficiency. Chemical bath deposition and annealing treatment were adopted to produce quantum dots with different sizes. The strategy of cosensitization by dual-sized CdS quantum dots was found effective to improve the performance of solar cells by forming a type-I band structure. Our work indicates that a reasonable configuration of quantum dots is crucial on boosting the performance of solar cells.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie300109u