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Title: DNA-like dye-sensitized solar cells based on TiO2 nanowire-covered nanotube bilayer film electrodes
Authors: Wang, Y
Yang, H 
Xu, H
Keywords: Multilayer structure
Solar energy materials
TiO2 nanotubes
TiO2 nanowires
Issue Date: 2010
Publisher: Elsevier
Source: Materials letters, 2010, v. 64, no. 2, p. 164-166 How to cite?
Journal: Materials letters 
Abstract: This paper reports a two-step formation of a TiO2 nanowire-covered nanotube bilayer film technique and its application in DNA-like dye-sensitized solar cells. The bilayer film was prepared by the electrochemical anodization first and then the hydrothermal method. From the reflectivity spectrum and scanning electron microscopy it is observed that the nanowire layer on the top cannot only decrease the reflectivity of the film, but also play a role to modify the film cracks. Compared with the dye-sensitized solar cells based on a single layer electrode, the cell with the bilayer film showed higher photovoltaic parameters and a lower dark current, which is due to its higher light harvesting efficiency and lower charge recombination between the electrolyte and the substrates.
ISSN: 0167-577X
EISSN: 1873-4979
DOI: 10.1016/j.matlet.2009.10.033
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