An oleic acid-capped CdSe quantum-dot sensitized solar cell

被引:117
作者
Chen, Jing [1 ,2 ]
Song, J. L. [3 ]
Sun, X. W. [2 ,4 ]
Deng, W. Q. [3 ]
Jiang, C. Y. [4 ]
Lei, W. [1 ]
Huang, J. H. [5 ]
Liu, R. S. [5 ]
机构
[1] Southeast Univ, Sch Elect Sci & Engn, Nanjing 210096, Peoples R China
[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[3] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637616, Singapore
[4] Inst Microelect, Singapore 117685, Singapore
[5] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
基金
美国国家科学基金会;
关键词
cadmium compounds; II-VI semiconductors; organic compounds; radiation effects; semiconductor quantum dots; solar cells; surface recombination; MULTIPLE EXCITON GENERATION; NANOCRYSTALS; FILMS; CDTE; DYE;
D O I
10.1063/1.3117221
中图分类号
O59 [应用物理学];
学科分类号
摘要
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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页数:3
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