Nano-composite based Smart Electrochromic Device with escalated transmittance

Abstract

Nanocomposites based Electrochromic Membrane Device (EMD) is fabricated by using DC sputtering with differently doped nanomembranes WO3 doped Ag NW and Li+, PEO, and H+Nb2O5 which undergoes optical and electrochemical characteristics so as to be capabale for smart applications. 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 analysed 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 overlayed the understanding of the quantum tunnelling and carrier confinement effects in the device that leads to enhanced device performance. Whole experimentation of EMD stands out as an imperative accomplishment for standard requirements to be fit for future smart applications.