Photovoltaic Performance of Vertically Grown ZnO nanorods in Dye-sensitized Solar Cells

Title
Photovoltaic Performance of Vertically Grown ZnO nanorods in Dye-sensitized Solar Cells
Author(s)
신부영양현석이정관김재홍한윤수[한윤수]김도경[김도경]
Keywords
NANOSTRUCTURED ZNO; TIO2; ELECTRODES; FILMS; ADSORPTION
Issue Date
201309
Publisher
TAYLOR & FRANCIS LTD
Citation
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.581, no.1, pp.116 - 125
Abstract
For an application to the photoelectrode in dye-sensitized solar cells (DSSCs), we fabricated ZnO nanorod arrays on fluorine-doped tin oxide (FTO) coated glass substrate by chemical bath deposition, and modified its surface through sodium silicate coating. Effects of the surface modification on the morphology of ZnO nanorod arrays, as well as the photoelectric conversion properties in DSSCs were investigated. From the field-emission scanning electron microscopy (FE-SEM) images, ZnO nanorods are observed to be vertically grown on FTO substrate. The surface treatment via dip coating within sodium silicate solution gives rise to increase the photocurrent, resulting in the increase of solar-to-electrical power conversion efficiency. This may be originated from that the surface-treated ZnO photoelectrode has higher conduction edge to introduce an energy barrier for increasing charge separation and suppressing recombination rate at the photoelectrode-electrolyte interface.
URI
http://hdl.handle.net/YU.REPOSITORY/29004http://dx.doi.org/10.1080/15421406.2013.808572
ISSN
1542-1406
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공과대학 > 화학공학부 > Articles
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