การสังเคราะห์ฟิล์มอิเล็กโทรโครมิกของทังสเตนออกไซต์เจือลิเทียมโมลิบเดตและซิลเวอร์คลอไรด์

Abstract

This thesis aims to synthesize lithium molybdate/silver co-doped tungsten trioxide electrochromic film via sol-gel method and then the sol-gel solution was deposited on FTO glass substrates by dip coating. The WO, doped with Li2MOO thin films (5, 10, 15 mol%) were dried at 60 °C for 1 h and calcined at 300 °C for 2 h. The synthesized film was characterized by XRD, SEM, EDX, AFM and XPS. The electrochromic and optical properties of the films were determined by using cyclic voltammetry and UV-vis spectrometer. It was found that 10 mol% Li2MOO, doped WO3 exhibited the highest electrochromic properties in terms of the highest diffusion coefficient of 3.98 x 10 cm2/s, and it had high color modulation of 55.93%. Furthermore, AgCl of 10 mol% doping in this film could give superior electrochromic property and its diffusion coefficient was about 4.55 x 109 cm2/s. AgCl made the films become darker.