Influence of Ti and Zn Dopants on Structural Properties and Electrochromic Performance of Sol-Gel Derived WO3 Thin Films

Content Provider	Semantic Scholar
Author	Paipitak, K. Techitdheera, Wicharn Porntheeraphat, Supanit Pecharapa, Wisanu
Copyright Year	2013
Abstract	Abstract The influence of different transition metals doping (Ti and Zn) on structural properties and electrochromic adjustment and performance of sol-gel derived WO 3 thin films was conducted and investigated. Ti-doped WO 3 and Zn-doped WO 3 thin films were deposited onto F-doped tin oxide (FTO) substrates using spin coating technique. Tungsten powder, Titanium butoxide and zinc acetate dehydrate were used as starting precursors. The as-deposited films were annealed at 500 °C for 2 h. The effect of Ti and Zn doping on structural, surface morphologies, optical properties of the films were examined using X-ray diffractometer, scanning electron microscope and UV-VIS spectrophotometer. The XRD analyses suggest that the crystalline of WO 3 can be identified as a monoclinic WO 3 structure. XRD results additionally indicate the existence of ZnWO 4 structure in the Zn-doped films, which is clearly observed by SEM. The optical measurement of all films indicate good transparency in the visible region and near infrared region with more than 60% in transmittance. In addition, It was found that the electrochromic performance of WO 3 can be enhanced by small doping concentration of titanium due to structural modification of the films caused by close ionic radius of Ti to W rather than that of Zn.
Starting Page	689
Ending Page	696
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1016/j.egypro.2013.06.801
Alternate Webpage(s)	https://core.ac.uk/download/pdf/82591492.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.egypro.2013.06.801
Volume Number	34
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article