Exploring Tungsten Trioxide Thin film Transmittance

Transmittance is physical vocabulary; it is the efficiency of light showing, the percentage of flux through its incident light flux transparent or translucent display devices. It denotes display device or through the efficiency of light; it directly affects the visual effect of the touch screen. Many touch screens are multilayer composite thin film, touch screen should include at least four characteristics: transparency, color distortion, sharpness and reflective.

Analyzing tungsten trioxide thin film by using XRD-600 diffractometer structure and morphology, which shows the transmittance of tungsten trioxide thin films are not different by comparing the sol - gel method and obtained by magnetron sputtering before annealing, and the transmittance of thin film decreases after annealing above 300 ℃, and the higher the annealing temperature, the transmittance is lower. Tungsten trioxide thin film samples are annealed below 350 ℃, the annealed thin film sample is gradually completed amorphous to crystalline transition state within the range of 350 ~ 400 ℃, after annealing at 400 ℃, the substrate also has a diffraction peak.

Different forms of tungsten trioxide thin film samples obtained at different annealing temperatures. In addition, the morphology and optical properties of tungsten trioxide thin films have a great impact on its gas-sensitive properties, such as relatively porous amorphous, which will help the adsorbed gas.

• < Prev
• Next >