Optical properties and photoelectrocatalytic activities improvement of WO3 thin film fabricated by fixed-potential deposition method

被引：15

作者：

Kangkun, Niphawan ^{[1
]}

Kiama, Nuanlaor ^{[1
]}

Saito, Nobuo ^{[3
]}

Ponchio, Chatchai ^{[1
,2
]}

机构：

[1] Rajamangala Univ Technol Thanyaburi, Fac Sci & Technol, Dept Chem, Pathum Thani 12110, Thailand

[2] Rajamangala Univ Technol Thanyaburi, Inst Res & Dev, Adv Mat Design & Dev AMDD Res Unit, Klong 6, Thanyaburi 12110, Pathum Thani, Thailand

[3] Nagaoka Univ Technol, Dept Mat Sci & Technol, 1603-1 Kamitomioka, Nagaoka, Niigata 9402188, Japan

来源：

OPTIK | 2019年 / 198卷

关键词：

WO3 thin film fabrication; Fix-potential deposition; Photoelectrocatalytic activity; Optical properties; PHOTOCATALYTIC ACTIVITY; ELECTROCHROMIC PROPERTIES; WATER OXIDATION; TUNGSTEN-OXIDE; DEGRADATION; SUBSTRATE; ELECTRODEPOSITION; PERFORMANCE; WO3/BIVO4; NITROGEN;

D O I：

10.1016/j.ijleo.2019.163235

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A tungsten oxide (WO3) photoanode electrode fabricated on conducing glass substrate was developed by a fixed-potential deposition (FPD) method to improve the optical properties and photoelectrocatalytic water oxidation efficiency. The effects of applied potential, deposition time, and calcination temperature were optimized for the highest photocurrent from the water oxidation process. The characteristics of the WO3 thin film were studied to confirm and understand the improvement in photoelectrocatalytic properties. The result shows that the optical properties and photoelectrocatalytic activity of the WO3 thin film fabrication are directly depended with an applied potential, deposition time, and calcination temperature parameters. The optimized WO3 photoanode electrode prepared by the FPD method shows significant optical properties and photoelectrocatalytic activity improvement over the traditional spin-coating method. The developed WO3 thin film fabrication by FPD method presents the photoelectrocatalytic oxidation reaction enhancing due to the visible light absorption, morphology, and crystalline structure improvement. This research can be further developed to improve the efficiency of thin film semiconductor fabrication for energy and environmental applications.

引用

页数：7