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Synthesis, Characterization, Photocatalytic Activity and Dye-sensitized Solar Cell Performance of Nanorods/nanoparticles TiO2

Published online by Cambridge University Press:  26 February 2011

Sorapong Pavasupree  and
Susumu Yoshikawa
Sorapong Pavasupree
Affiliation:
sorapongp@yahoo.com, Institute of Advanced Energy, Kyoto University, Uji, Kyoto, N/A, Japan
Susumu Yoshikawa
Affiliation:
s-yoshi@iae.kyoto-u.ac.jp, Institute of Advanced Energy, Kyoto University, Molecular Assemblies Design Research Section, Gokasho ,Uji, Kyoto, N/A, Japan
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Abstract

Nanorods/nanoparticles TiO2 with mesoporous structure were synthesized by hydrothermal method at 150 °C for 20 h. The samples characterized by XRD, SEM, TEM, SAED, HRTEM, and BET surface area. The nanorods had diameter about 10-20 nm and the lengths of 100-200 nm, the nanoparticles had diameter about 5-10 nm. The prepared material had average pore diameter about 7-12 nm. The BET surface area and pore volume of the sample are about 203 m2/g and 0.655 cm3/g, respectively. The nanorods/nanoparticles TiO2 with mesoporous structure showed higher photocatalytic activity (I3- concentration) than the nanorods TiO2, nanofibers TiO2, mesoporous TiO2, and commercial TiO2 (ST-01, P-25, JRC-01, and JRC-03). The solar energy conversion efficiency (η) of the cell using nanorods/nanoparticles TiO2 with mesoporous structure was about 7.12 % with Jsc of 13.97 mA/cm2, Voc of 0.73 V and ff of 0.70; while η of the cell using P-25 reached 5.82 % with Jsc of 12.74 mA/cm2, Voc of 0.704 V and ff of 0.649.

Keywords

hydrothermalceramiccatalytic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 974: Symposium CC – Solar Energy Conversion , 2006 , 0974-CC07-09
Copyright
Copyright © Materials Research Society 2007

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References

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