Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 10, Issue 4, Pages 2284-2291Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2010.1900
Keywords
TiO2; Rutile; Nanorod Array; Amino Acid; Dye-Sensitized Solar Cells
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Funding
- MEXT, Japan [19685020]
- JST, Japan
- NEDO, Japan
- Grants-in-Aid for Scientific Research [19685020] Funding Source: KAKEN
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Vertically aligned single-crystalline TiO2 rutile nanorod arrays were synthesized on FTO transparent conductive substrates, via the hydrolysis of TiCl4 under the co-existence of amino acid catalysts. Using TiO2 seed nanocrystals (prepared from Ti(IV) ethoxide, calcined at 450 degrees C for 1 h), TiO2 rutile nanorod arrays grew at a relatively mild temperature of 95 degrees C for 2 days. The growth speed and morphology of nanorod array were controllable by changing the type and concentration of amino acid. XRD analysis revealed that the TiO2 nanorod arrays were composed of highly crystalline rutile phase even without calcination. Preliminary dye-sensitized solar cell performance was also reported.
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