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標題: Photovoltaic Performance of New-Structure ZnO-nanorod Dye-Sensitized Solar Cells
作者: Lai, M.H.
Lee, M.W.
Wang, G.J.
Tai, M.F.
Project: International Journal of Electrochemical Science
期刊/報告no:: International Journal of Electrochemical Science, Volume 6, Issue 6, Page(s) 2122-2130.
Currently, the photoelectrode of nanorod-based dye-sensitized solar cells (DSSCs) consists of nanorods grown on a transparent conducting layer (TCO) substrate. This work presents a new structure for nanorod DSSCs. ZnO nanorods and a ZnO film were cogrown using a one-step chemical-vapor deposition method. The ZnO film functioned as the TCO of the DSSC. The ZnO nanorod/ZnO film structure was sensitized with D149 or N719 dye and assembled into a DSSC. Two notable features in this new DSSC structure are: (1) the junction between the TCO film and the nanorods is completely eliminated; (2) the TCO and the photoelectrode are made of the same material. Testing showed that under AM1.5 illumination, a short current density of 15.7 mA/cm(2) and a power conversion efficiency eta of 1.82% can be achieved. The eta is more than two times higher than the eta reported earlier for ZnO-nanorod DSSCs with the same structure.
ISSN: 1452-3981
Appears in Collections:生醫工程研究所

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