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

Chien-Chung Lin, Hsin Chu Chen, Yu Lin Tsai, Hau Vei Han, Huai Shiang Shih, Yi An Chang, Hao-Chung Kuo, Pei-Chen Yu

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

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.

Original languageEnglish
Pages (from-to)A319-A326
JournalOptics Express
Volume20
Issue number102
DOIs
StatePublished - 12 Mar 2012

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