Fabrication of dual sensitive titania (TiO2)/graphene oxide (GO) one-dimensional photonic crystals (1DPCs)

1DPCs, such as Bragg stack and distributed Bragg mirrors, are the simplest photonic crystal. TiO2/GO 1DPCs were fabricated by spin-coating technique. The photonic stopbands of the 1DPCs were measured by fiber optic spectrometer. The results demonstrated that the 1DPCs with different stopbands could be obtained from controlling spin-coating and incident angles. The prepared 1DPCs have double response to both dimethyl sulfoxide (DMSO) and alkali solution.