Abstract

TiO2/Poly(methyl methacrylate) (PMMA) bilayered films have been prepared by spin coating technique on the glass substrate. The nanorod-structured TiO2 prepared by a coprecipitation method was used. The structure and morphology were tested by X-ray diffraction (XRD), scanning electron microscopy, and atomic force microscopy (AFM). The optical properties and the anti-reflection (AR) coating performance were evaluated by UV-Vis spectrometer. The XRD pattern has shown that the TiO2 particles have the nanorods structure and the rutile phase. The AFM analysis showed that the layer of TiO2 nanorods has formed a colloidal crystal with an amorphous structure having a smooth surface. Based on the absorption spectra of a single layer TiO2, the optical band gap (E g) between 3.65-3.70 eV and the Urbach energy (E u) between 204-255 meV can be determined. The maximum transmittance of TiO2/PMMA bilayered film at a normal incident light can reach up to 98.5%.

Original languageEnglish
Pages (from-to)787-792
Number of pages6
JournalMicro and Nano Letters
Volume12
Issue number10
DOIs
Publication statusPublished - 1 Oct 2017

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