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NCUEIR > College of Science > Department of Chemistry > Periodical Articles > Item 987654321/15467

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/15467

Title:	Fabrication and Photovoltaic Characterization of Bio-Sensitized Solar Cells Using Myoglobin-Based Sensitizers
Authors:	Chang, Chih-Wei;Chang, Chin-Hao;Lu, Hsueh-Pei;Wu, Tung-Kung;Diau, Eric Wei-Guang
Contributors:	化學系
Date:	2009-03
Issue Date:	2013-02-05T02:21:19Z
Publisher:	American Scientific Publishers
Abstract:	Myoglobin (Mb), reconstituted zinc protoporphyrin-apomyoglobin (ZnMb), and eosin-modified ZnMb (EoZnMb) were used as photosensitizers to functionalize TiO2 nanocrystalline films for biosensitized solar-cell (BSSC) applications. For the Mb-sensitized SC, the poor cell performance was due to a reduction Fe(III) → Fe(II) that produces a photocurrent density of the device smaller than its unsensitized counterpart. The efficiencies of power conversion of both ZnMb and EoZnMb–sensitized SC were enhanced about ten times due to superior charge separation between TiO2 and the protein, and due to smaller current leakage between TiO2 and the electrolyte. The cell performances of the BSSC devices are discussed in terms of an equivalent-circuit model.
Relation:	Journal of Nanoscience and Nanotechnology, 9(3): 1688-1695
Appears in Collections:	[Department of Chemistry] Periodical Articles

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