期刊
MATERIALS LETTERS
卷 64, 期 12, 页码 1372-1375出版社
ELSEVIER
DOI: 10.1016/j.matlet.2010.03.022
关键词
ZnO; Nanorods; Dye-sensitized solar cell; Plasmon; Au nanoparticles
Dye-sensitized solar cells (DSSC) based on ZnO nanorods were fabricated and modified through the addition of Au nanoparticles. The as-synthesized ZnO nanorods were well-dispersed and of high crystallinity quality leading to a high cell efficiency of 5.2%. On the other hand, thick layer of Au nanoparticles aggregation may have led to distortion of plasmonic effect. Also, the addition of Au nanoparticles have effectively decreased the surface area of ZnO nanorods with direct contact to the dye molecules, resulting in a lower amount of adhered dye molecules to convert sunlight. The electrons generated by the photo-absorption through thick aggregated Au nanoparticles layer may have a lower injection rate to ZnO nanorods as compared to those absorbed by the dye. (C) 2010 Elsevier B.V. All rights reserved.
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