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Ti-doped W03 films were prepared by the mid-frequency dual-target magnetronsputtering method.The structure and electrochromic properties of the Ti-doped WO3 films wereanalysed by X-Ray diffraction(XRD),Raman spectroscopy,spectrophotometer,cyclic chronoam-perometry and atomic force microscopy(AFM).The results indicate that the crystallinity decreaseafter the doping of titanium,the channels for ion injection and extraction increase,the respondingspeed with 5.1% titanium doped becomes faster,and its circle life increases more than four timescompared with the undoped WOa film.In the coloured state,the W-O-W bonds decrease,butthe W=O bonds increase.Since the W-O-W bonds break down for Li~+ ions’ injection and moreW=O bonds form,it is more convenient to inject Li~+ ions into the Ti-doped film than undopedfilm because more W-O-W bonds break down in the coloured state.
Ti-doped W03 films were prepared by the mid-frequency dual-target magnetronsputtering method. The structure and electrochromic properties of the Ti-doped WO3 films werealyaly by X-ray diffraction (XRD), Raman spectroscopy, spectrophotometer, cyclic chronoam-perometry and atomic force microscopy (AFM). the results indicate that the crystallinity decrease after the doping of titanium, the channels for ion injection and extraction increase, the respondingspeed with 5.1% titanium doped becomes faster, and its circle life increases more than four timescompared with the undoped WOA film.In the colored state, the WOW bonds decrease, but the W = O bonds increase. Since the WOW bonds break down for Li ~ + ions’ injection and moreW = O bonds form, it is more convenient to inject Li ~ ions into the Ti-doped film than undopedfilm because more WOW bonds break down in the colored state.