Optoelectrical properties of PET spunbonded nonwovens deposited with ITO thin films by RF sputter coating

Transparent conductive silicon doped zinc oxide (SZO, 3%Si) thin films are grown by direct current magnetron sputtering on glass substrates at room temperature. Experimental results show that the sputtering time has a significance impact on the growth rate, crystal quality and electrical properties of the films, and have little impact on the optical properties of the films. The growth rate decreases with the sputtering time. The resistivity of ZnO/Si films decreases as the sputtering time increases from 8 to 20 min. However, as the sputtering time increases further, the electrical resistivity increases instead. When other sputtering conditions are kept unchanged, it is found that the optimum sputtering time is 20 min and the achieved lowest resistivity is 4?92610 24 V cm (sheet resistance511?5 V/sq for thickness 427?5 nm). The UV-vis transmission spectrum shows that all film samples present a transmission of above 90?0% in the visible range.

Section: Methodsmentioning

confidence: 99%

Si doped ZnO thin films for transparent conducting oxides

Qin

Liu

Yuan

2013

“…7 Hence, thin film materials based on Ta and Mo metals have been used for a wide variety of engineering applications such as under layers in magnetic recording media and high temperature protective coatings. 8 For instance, Ta-Mo is the basis of a family of oxidation and corrosion resistant coatings that have been used on Ni based and Ta based superalloys. 7 However, the high temperature oxidation behaviour of nanostructured Ta-Mo coatings on Ni based super alloy substrate is scarce in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, Ta–Mo is the basis of a family of oxidation and corrosion resistant coatings that have been used on Ni based and Ta based superalloys 7. However, the high temperature oxidation behaviour of nanostructured Ta–Mo coatings on Ni based super alloy substrate is scarce in the literature 9…”

Section: Introductionmentioning

confidence: 99%

Mechanical and corrosion properties of Ta–Mo coatings by heating processes

Zhou

et al. 2012

In this research, substrate heating process has been used for the production of Ta-Mo high temperature protective coatings. The microstructures of the alloy coatings have been studied through X-ray diffraction and scanning electron microscopy. Mechanical and corrosion properties of different alloys have been investigated in both low and high temperature heating processes. Substrate heating processes (from 250 to 550uC) were expected to produce partially recrystallised and fully recrystallised microstructures. Higher heating temperature results in recrystallised microstructures, but adversely affects the density of atoms V t and bond energy G. The behaviour of low and high temperature heating processes on corrosion and mechanical properties of Ta-Mo nanostructured coatings was studied.

“…Many researchers have focused on the effect of surface treatment and coating thickness on film properties in recent years. Wang et al studied the optoelectrical properties of PET spunbonded non-wovens deposited with ITO thin films by RF sputter coating 8. They found that indium tin oxide films with different thicknesses between 56 and 224 nm showed varying transmittances in the visible and ultraviolet regions and the transmittance of the non-woven decreased as the thickness of the ITO film increased.…”

Section: Introductionmentioning

confidence: 99%

Influence of film thickness of Ti coating on bonding quality of glass with PET

Liu

Wang

Zhang

et al. 2012

Transmission laser bonding of dissimilar and biocompatible materials has a potential application in biomedical implants. The reliability of wafer bonding between polyethylene therephthalate and glass with Ti coating is quite dependent on the surface condition of Ti film. Ti coatings were deposited on glass substrates using radio frequency magnetron sputtering. Ti coatings with different thicknesses between 60 and 150 nm showed varying surface morphology. The effect of film thickness of Ti coating on bonding quality was studied by optical profilometer and true colour confocal microscopy for materials. X-ray photoelectron spectroscopy (XPS) was used to study the bonding mechanism by evaluating the formation of chemical bond during laser bonding process. The XPS results give evidence for the formation of Ti-C and Ti-O bonds in the sharp interfacial region. Experimental results show that the film thickness of Ti coating has a significant impact on bonding quality.