The chemical interaction of poly(3-octylthiophene)/titanium dioxide composite materials

Composite materials of poly(3-octylthiophene) and titanium dioxide (POT/TiO2) were synthesized by ultrasound method and in-situ method. The chemical interaction in the composite materials is discussed with help of X-ray diffraction patterns (XRD), X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy (IR). Ultraviolet–visible spectra (UV–vis) showed that optical performance of the composite materials was far superior to POT or TiO2 separately, and the chemical bond effect was more intense in the composite material prepared in in-situ method.

► POT/TiO2 were synthesized by ultrasound method and in-situ method.
► The chemical interactions were discussed in the composite materials.
► The chemical bond effect is more intense in the composite prepared in in-situ method.