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Opt Express. 2012 Mar 12;20 Suppl 2:A319-26. doi: 10.1364/OE.20.00A319.

Highly efficient CdS-quantum-dot-sensitized GaAs solar cells.

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  • 1Institute of Photonic System, College of Photonics, National Chiao-Tung University, No.301, Gaofa 3rd Rd., Guiren Dist., Tainan City 71150, Taiwan. chienchunglin@faculty.nctu.edu.tw

Abstract

We demonstrate a hybrid design of traditional GaAs-based solar cell combined with colloidal CdS quantum dots. With anti-reflective feature at long wavelength and down-conversion at UV regime, the CdS quantum dot effectively enhance the overall power conversion efficiency by as high as 18.9% compared to traditional GaAs-based device. A more detailed study showed an increase of surface photoconductivity due to UV presence, and the fill factor of the solar cell can be improved accordingly.

PMID:
22418681
[PubMed]
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