Paper Title:
Photochromic Characteristics of Tungsten Trioxide Films Prepared by Electric Current Heating Using Tungsten Wire
  Abstract

Tungsten trioxide films were deposited on the glass substrate by electric current heating method using tungsten wire in air. Applied voltages to the tungsten wire were increased at rates of 0.05, 0.5, 5 and 50 V/min. The resultant films consisted of particles. A particle size of the crystals increased with increasing voltage applying rate. The effects of an ultraviolet (UV) irradiation on the reflectance of the films were investigated. The reflectance in the wavelength range of 500 - 2500 nm decreased by the irradiation. When the films were left in dark after the irradiation, the reflectance returned to the initial. With increasing voltage applying rate, absorption peak shifted toward longer wavelength in the region of 1250 - 1500 nm and the peak intensity decreased.

  Info
Periodical
Key Engineering Materials (Volumes 421-422)
Edited by
Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki
Pages
364-367
DOI
10.4028/www.scientific.net/KEM.421-422.364
Citation
T. Hagizawa, T. Honma, Y. Kuroki, T. Okamoto, M. Takata, "Photochromic Characteristics of Tungsten Trioxide Films Prepared by Electric Current Heating Using Tungsten Wire", Key Engineering Materials, Vols. 421-422, pp. 364-367, 2010
Online since
December 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Wei Qin, Xiao Hong Wu, Gui Mei Zhao, Xiao Ming Lai, Li Gong Zhang
Abstract:As a kind of white paint, ZnO/silicone thermal control coatings are used commonly in space. In order to implement more effective thermal...
1725
Authors: Jin She Yuan, Ming Yue Wang, Guo Hao Yu
Abstract:Low-temperature plasma deposition of diamond-like carbon (DLC) and gallium nitride thin-films grown on Si substrate by PECVD was investigated...
353
Authors: Jin She Yuan, Guo Hao Yu, Chang Min Yang, Ming Yue Wang
Abstract:The GaN film deposited on ITO glass substrate by PECVD was characterized using XPS, SEM and reflectance spectra. XPS analysis indicated that...
446
Authors: Shiuh Chuan Her, Yi Hsia Wang
Abstract:Silver films were prepared on the glass substrate by electron-beam vapor deposition. The reflectivity of the Ag thin film was measured by a...
1412
Authors: Shiuh Chuan Her, Yi Hsia Wang
Abstract:The aluminum film with high reflectivity and low absorption in the visible wavelength region has been widely used in optical applications. In...
444