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Controlling Wettability and Photochromism in a Dual‐Responsive Tungsten Oxide Film
Author(s) -
Wang Shutao,
Feng Xinjian,
Yao Jiannian,
Jiang Lei
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200502061
Subject(s) - photochromism , superhydrophilicity , wetting , oxide , materials science , tungsten , irradiation , nanotechnology , dual (grammatical number) , chemical engineering , computer science , chemistry , physics , composite material , metallurgy , engineering , art , literature , nuclear physics
A wet and dry paper! Tungsten oxide films prepared by a facile electrochemical deposition process provide the first example of a dual surface functionality. The reversible switch of wettability between superhydrophobicity and superhydrophilicity is realized by alternating irradiation with UV light and storage in the dark; this phenomenon is accompanied by photochromism (see picture).