Abstract
The N/TiO 2 nanobelts anodes were prepared by sol and powder combination technology. Transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS) confirmed the structure of nanobelts and the modification of non-metallic element N. Electrochemical Impedance Spectroscopy (EIS) measurements showed that the R ct2 corresponding to the TiO 2/dye/electrolyte interface decreased 13.66 Ω. TiO 2 in the form of belt was conducive to transmission of carriers produced by photoexcited dye. The modification of elements N led to a strong redshift to the visible region in the ultraviolet-visible spectra (UV-vis). Much more components of sunlight can be used. Therefore, the photoelectric conversion efficiency of dye-sensitized solar cell (DSSC) was improved.
Original language | English |
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Pages (from-to) | 34-37 |
Number of pages | 4 |
Journal | Materials Letters |
Volume | 84 |
DOIs | |
Publication status | Published - 1 Oct 2012 |
Externally published | Yes |
Keywords
- Dye sensitized solar cell
- Modification
- Solar energy materials
- XPS