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Anodic TiO 2 ‐based porous photonic films
Author(s) -
Cheng JianWen,
Tsang Chun Kwan,
Cheng Hua,
Liang Fengxia,
Li Yang Yang
Publication year - 2011
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201000093
Subject(s) - anodizing , materials science , photonics , porosity , structural coloration , optoelectronics , mesoporous material , porous medium , photonic crystal , interference (communication) , optics , nanotechnology , composite material , chemistry , computer science , aluminium , biochemistry , channel (broadcasting) , catalysis , computer network , physics
Abstract We here report using the convenient anodization method to fabricate colored porous TiO 2 films. The photonic color of the fabricated TiO 2 film originates from the Fabry–Pérot interference phenomena. By adjusting the parameters of the anodization process, TiO 2 films with different colors are obtained. The fabricated TiO 2 photonic film is mesoporous and is capable of optical sensing as illustrated by the change of its optical response upon exposure to ethanol vapor.