Journal
OPTICS EXPRESS
Volume 20, Issue 6, Pages A319-A326Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.00A319
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Funding
- National Science Council in Taiwan [NSC 99-2120-M-006-002, NSC-99-2120-M-009-007, NSC101-3113-E-110-006-]
- NCTU
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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. (C) 2012 Optical Society of America
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