Synthesis, morphological and optical characterizations of the poly (O-toluidine)-LiCl networks thin film

Abstract Networks containing poly (O-toluidine) (POT) and LiCl (5%, 10%, 20%, 30% V/V) were synthesized in thin films formed using a chemical reaction method. Details analysis of the surface morphology for the prepared thin films was conducted using scanning electron microscopy (SEM) along with the Image J software. It is clearly observed that the percentage rate of LiCl is highly influence on the morphology of the POT surfaces. The Fourier-transform infrared spectroscopy and X-ray diffraction patterns are utilized to confirm the corresponding chemical bonds and the crystalline structure of the fabricated networks, respectively. The energy gap of the POT thin films was calculated based on the UV–Vis measurements and the values exhibit a directly allowed transition. The room thermal optical coefficients of POT were evaluated through the thermal lens technique as a function of LiCl concentrations. The aforementioned findings suggest the high impacts of the fabricated networks in several applications related to optoelectronics and energy storage areas.