Fabrication of stable electrospun TiO2 nanorods for high-performance dye-sensitized solar cells

TiO 2 multi-electrodes composed of nanoparticles and nanorods were prepared for use as electrodes in dye-sensitized solar cells (DSSC) in an effort to improve the light-to-electricity conversion efficiency. TiO 2 nanorods have been successfully prepared via electrospinning methods using a solution c...

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Bibliographic Details
Published in:Macromolecular research 2013, 21(6), , pp.636-640
Main Authors: Park, Yeong Don, Anabuki, Keita, Kim, Sumin, Park, Kyung-Won, Lee, Dong Hyun, Um, Soong Ho, Kim, Jooyong, Cho, Jeong Ho
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Nanochemistry
Nanotechnology
Physical Chemistry
Polymer Sciences
Soft and Granular Matter
고분자공학
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Summary:TiO 2 multi-electrodes composed of nanoparticles and nanorods were prepared for use as electrodes in dye-sensitized solar cells (DSSC) in an effort to improve the light-to-electricity conversion efficiency. TiO 2 nanorods have been successfully prepared via electrospinning methods using a solution containing titanium isopropoxide (TIP). Acetic acid is generally used as a catalyst in sol-gel processes involving TIP; however, acetic acid induces rapid solidification of the sol solution, resulting in clogging of the nozzle during electrospinning, thereby hindering the mass production of TiO 2 nanorods. In this work, we introduced acetyl acetone as a new catalyst and optimized the electrospinning conditions of TiO 2 nanofibers. The use of acetyl acetone catalysts dramatically extended the solidification time of the TIP sol solution. The DSSC efficiency was improved through the use of TiO 2 multi-electrodes.
ISSN:1598-5032
2092-7673
DOI:10.1007/s13233-013-1066-x