TY - JOUR
T1 - Fabrication of porous TiO2 films using a spongy replica prepared by layer-by-layer self-assembly method
T2 - Proceedings of the Sixth International Conference on Nano-Molecular Electronics (ICNME 2004)
AU - Tsuge, Yosuke
AU - Inokuchi, Kohei
AU - Onozuka, Katsuhiro
AU - Shingo, Ohno
AU - Sugi, Shinichiro
AU - Yoshikawa, Masato
AU - Shiratori, Seimei
N1 - Funding Information:
This work was partly supported by KEIO Life Conjugated Chemistry (LCC) Programme of the Centre of Excellence (COE) Research Project in the 21st century sponsored by Japanese Ministry of Education, Science, Culture, and Sports. This work was made use of shared experimental facilities at the Kimura laboratory of Keio University. The authors acknowledge K. Kakiuchi (Kimura laboratory) for partial support of this work.
PY - 2006/3/21
Y1 - 2006/3/21
N2 - In this study, we report the fabrication of the anatase TiO2 films with high porosity using a new spongy replica which prepared by layer-by-layer self-assembly technique. The scanning electron microscope photographs revealed that the spongy replica has an extremely porous microstructure and high surface area. Moreover, this porous replica was easily fabricated from a very flat film through the action with silver acetate solution. This method facilitated the porous TiO2 films with a high surface area. Additionally, by this method, a necking between the TiO 2 films was strong and the amount of loaded dye was increased, so that the increase of forward electron transfer between the TiO2 films on the surface and the TiO2 films on the substrate. By using the fabricated porous TiO2 films as the photoelectrode for dye-sensitized solar cell, the improvement of the photocurrent-voltage characteristic was achieved, resulting in an energy conversion efficiency of Eff = 2.66% with the thickness of approximately 5 μm.
AB - In this study, we report the fabrication of the anatase TiO2 films with high porosity using a new spongy replica which prepared by layer-by-layer self-assembly technique. The scanning electron microscope photographs revealed that the spongy replica has an extremely porous microstructure and high surface area. Moreover, this porous replica was easily fabricated from a very flat film through the action with silver acetate solution. This method facilitated the porous TiO2 films with a high surface area. Additionally, by this method, a necking between the TiO 2 films was strong and the amount of loaded dye was increased, so that the increase of forward electron transfer between the TiO2 films on the surface and the TiO2 films on the substrate. By using the fabricated porous TiO2 films as the photoelectrode for dye-sensitized solar cell, the improvement of the photocurrent-voltage characteristic was achieved, resulting in an energy conversion efficiency of Eff = 2.66% with the thickness of approximately 5 μm.
KW - Dye-sensitized solar cell
KW - Layer-by-layer (LBL) self-assembly
KW - Spongy replica
KW - TiO
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U2 - 10.1016/j.tsf.2005.07.013
DO - 10.1016/j.tsf.2005.07.013
M3 - Conference article
AN - SCOPUS:31644447341
SN - 0040-6090
VL - 499
SP - 396
EP - 401
JO - Thin Solid Films
JF - Thin Solid Films
IS - 1-2
Y2 - 15 December 2004 through 17 December 2004
ER -