Abstract
Multilayer polyethylene glycol / titanium dioxide( PEG / TiO2) one-dimensional photonic crystal films were fabricated by using spin coating technique. PEG / TiO2one-dimensional photonic crystal membranes with different photonic stopbands were fabricated by changing the time of spin coating,spin speed and the mass concentration of polyethylene glycol solution. The experiment results show that PEG / TiO2 film has a dual response to dimethyl sulfoxide( DMSO) and strong alkali solution.
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