Development and analysis of Ag nanowire and Li+ doped WO3 based low-energy electrochromic device for escalated transmittance

Nanocomposites based Electrochromic Membrane Device (EMD) is fabricated by using DC sputtering with differently doped nanomembranes. WO 3 doped with Ag Nanowire and Li + , PEO and H + Nb 2 O 5 thin films are utilized in fabricating EMD which undergoes optical and electrochemical characteristics to measure the feasibility for smart applications. The average crystal size for WO 3 doped with Ag Nanowire and Li + and H + Nb 2 O 5 thin film have been observed through XRD analysis. Highest bleaching transmittance of this device is evaluated to be 96.1% at 549nm and 93.1% at 825nm in the visible and IR spectra. Average colouration transmittance is observed to be 11.1% over visible range and 2.6% over IR range. A comparison with existing devices are also studied and analyzed to understand the benefit of the EMD device. Dimming fastness of EMD on 500, 550 and 600nm upon a certain wavelength counted as 105, 111 and 150sec, respectively. Both transmittance modulation and optical density are also computed as 85% and 0.94. Cyclic voltammetry of each film and the whole nanostructured device arrangement is carried out for 50mV/s over +1.5V to -1.5V in the standard environment, which overlaid the understanding of the quantum tunneling and carrier confinement effects in the device that leads to enhance device performance. Whole experimentation of EMD stands out as an imperative accomplishment for standard requirements to be fit for future smart applications.