Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 15, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3117221
Keywords
cadmium compounds; II-VI semiconductors; organic compounds; radiation effects; semiconductor quantum dots; solar cells; surface recombination
Categories
Funding
- Nanyang Technological University [RGM44/06]
- National Science Foundation of China [50872022]
- Ministry of Education [20030286003]
- Program for New Century Excellent Talents in University
- NSC [97-2113-M002-012-MY3]
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In this letter, we report an oleic acid (OA)-capped CdSe quantum-dot sensitized solar cell (QDSSC) with an improved performance. The TiO(2)/OA-CdSe photoanode in a two-electrode device exhibited a photon-to-current conversion efficiency of 17.5% at 400 nm. At AM1.5G irradiation with 100 mW/cm(2) light intensity, the QDSSCs based on OA-capped CdSe showed a power conversion efficiency of about 1%. The function of OA was to increase QD loading, extend the absorption range and possibly suppress the surface recombination.
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