Abstract
An investigation was conducted on the lithium electrochromic performance of flexible organo-tungsten-tantalum oxide (WTaxOyCz) films enhanced by the addition of oxygen gases into an atmospheric pressure plasma jet at various flow rates for a short exposure duration of 33s. The deposition of flexible WTaxOyCz films onto flexible 40Ω/□ polyethylene terephthalate/indium tin oxide substrates using a certain addition of oxygen gas into plasma jet offers notable electrochromic performance after 200cycles of reversible Li+ ion intercalation and de-intercalation in a 1M LiClO4-propylene carbonate electrolyte tested by potential sweep switching between −1V and 1V at a scan rate of 50mV/s and the potential step switching at −1V for 20s and 1V for 13s. The optical modulation (ΔT) of amorphous WTaxOyCz at a wavelength of 803.4nm was significantly improved from 29.8% without the addition of oxygen gas to 61.2% with the addition of oxygen gas at a flow rate of 0.75sccm into a plasma jet.
Published Version
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