Characterization of Pure and Doped Amorphous WO3 Films by Raman Spectroscopy
Lü Gang1,2, WU Yong-gang2*, WU He-yun2, XIA Zi-huan2, LIU Ren-chen2
1. Information Science and Engineering College, Shandong Agricultural University, Tai’an 271000, China 2. Institute of Precision Optical Engineering, Tongji University, Shanghai 200092, China
Abstract：Pure, TiO2-doped and TiO2/Ag-doped WO3 films were prepared by evaporation and electron beam evaporating. Raman spectroscopy and chronoamperometry were used to characterize the electrochromic properties of the samples. The correlation between the relative intensity of the Raman peaks, corresponding to the Raman sharp peak of the crystalline phase at 810 cm-1 is negative, that is to say the higher the relative intensity of the Raman peaks, the smaller the coloration efficiency.
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