Fabrication of mesoporous titania membrane of dual-pore system and its photocatalytic activity and dye-sensitized solar cell performance

Title
Fabrication of mesoporous titania membrane of dual-pore system and its photocatalytic activity and dye-sensitized solar cell performance
Authors
오승임최경훈임지은왕강균양혜영김경곤김용록
Keywords
염료감응태양전지; 유기태양전지
Issue Date
2011-07
Publisher
Nanotechnology
Citation
VOL 22, NO 27, 275309-1-275309-7
Abstract
We report the fabrication of a novel titania membrane of the dual-pore system that is strategically designed and prepared by a two-step replication process and sol–gel reaction. The primary nanoporous channel structure is fabricated by the cage-like PMMA template (CPT) obtained from the nanoporous alumina membrane and the secondary mesoporous structure is formed by the sol–gel reaction of the lyotropic precursor solution within the CPT. Furthermore the mesoporous titania membrane (MTM) frame consists of the titania nanoparticles of 10–12 nm in diameter. Morphology and structural properties of the MTM are investigated by field emission scanning electron microscopy, high resolution transmission electron microscopy, x-ray diffraction and Brunauer–Emmett–Teller surface area. The photocatalytic activity and the solar energy properties of the MTM are characterized by UV–vis spectrophotometer, spectrofluorometer and photoinduced I –V measurement. The photocatalytic test indicates that the MTM has higher efficiency than the commercial P25 with a good recyclability due to its large-scale membrane style and the preliminary result on the solar cell application shows a solar energy conversion efficiency of 3.35% for the dye-sensitized solar cell utilizing the MTM.
URI
http://pubs.kist.re.kr/handle/201004/40710
ISSN
0957-4484
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KIST Publication > Article
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