Journal
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume 30, Issue 8, Pages 765-769Publisher
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2014.03.010
Keywords
Titanate nanotube; Hydrothermal; Nb-doped; TiO2; Dye-sensitized solar cell
Funding
- National Natural Science Foundation of China [51172233]
- Major State Basic Research Development Program of China (973 Program) [2009CB220002]
- Key Laboratory of Water and Air Pollution Control of Guandong Province, China [GD2012A05]
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Nb-doped TiO2 nanoparticles were prepared by hydrothermal treatment of titanate nanotubes in niobium oxalate aqueous solution. The effect of Nb doping and rutile content on the photoelectrochemical performance based on TiO2 powder electrodes was investigated. The results show that Nb-doped TiO2 with a small amount of rutile exhibits the enhanced photoelectric conversion efficiency for dye-sensitized solar cell. The highest photoelectric conversion efficiency of 8.53% is obtained for 1% Nb-TiO2 containing a small amount of rutile. When a small amount of rutile contained in 2% Nb-TiO2, a higher photoelectric conversion efficiency of 8.77% is achieved.
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