Journal
MATERIALS RESEARCH BULLETIN
Volume 48, Issue 3, Pages 978-982Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2012.11.094
Keywords
Nanostructures; Oxides; Chemical synthesis; Electrochemical properties
Categories
Funding
- Program for Changjiang Scholars and Innovative Research Team in University [IRT 0654]
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The TiO2 nanoparticles/nanofibers bilayer film has been fabricated via spin coating and electrospinning followed by calcination. The TiO2 bilayer film with-thickness of about 6.0 mu m is composed of anatase TiO2 phase. Dye-sensitized solar cells (DSSC) were assembled by hydrochloric acid (HCl) treated TiO2 film. The results of the photocurrent action spectra, electrochemical impedance spectroscopy (EIS), and I-V curves showed that each photovoltaic parameter of DSSC increased with the concentration of HCl increasing, and reached a maximum value and afterwards decreased. The maximum incident monochromatic photo-to-electron conversion efficiency (at 350 nm) and maximum overall conversion efficiency (eta) of 0.05 M HCl treated TiO2 based DSSC were enhanced to 48.0% and 4.75%, which were respectively increased by 14% and 6.3% than those of DSSC based on untreated TiO2 film. (c) 2012 Elsevier Ltd. All rights reserved.
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