The Effects of the TiO2 Interlayer

Surface modified layer of TiO2 with anatase phase
can t be obtained from direct spin-coated TIP on IF
(interstitial free) steel by using sol-gel
techniques. Thus, this study used interlayers (Fe
atoms diffusion barriers) not only to inhibit Fe
atoms of the substrates from diffusing to out
surface but also to fix surface modified layer of
TiO2. Middle layers adopted two different ways: (1)
Dry process adopted sputtered Cr thin films. (2) Wet
process adopted spin-coated method with TOES gel to
obtain Si-O thin films after calcined. This research
observed the diffusion abilities of Fe atoms in heat
environment, surface morphology, and local
composition variations for various thin film systems;
moreover, it estimated photocatalytic
characteristics of surface modified layer. The film
thickness of dry process can control steady in
0.25µm. 400 heat treatment or coating
incoherent thin films did not influence the
composition of Cr films and the stability of its
thickness, but restrained Fe doping into TiO2.

Autorentext

Education:1.M.S. ,Department of Materials Engineering Tatung University (2004/08~2006/07)2. Bachelor's Degree, Feng Chia University Department of Mechanical and Computer Aided Engineering (1999/08~2003/06)Experience:Engineer, HSIP Defect Control & Metrology Dept. Production Technology Div., ProMos Technologies Inc. (2006/07~now)

Klappentext

Surface modified layer of TiO2 with anatase phase can't be obtained from direct spin-coated TIP on IF (interstitial free) steel by using sol-gel techniques. Thus, this study used interlayers (Fe atoms diffusion barriers) not only to inhibit Fe atoms of the substrates from diffusing to out surface but also to fix surface modified layer of TiO2. Middle layers adopted two different ways: (1) Dry process adopted sputtered Cr thin films. (2) Wetprocess adopted spin-coated method with TOES gel to obtain Si-O thin films after calcined. This research observed the diffusion abilities of Fe atoms in heat environment, surface morphology, and local composition variations for various thin film systems;moreover, it estimated photocatalytic characteristics of surface modified layer. The filmthickness of dry process can control steady in 0.25µm. 400 heat treatment or coatingincoherent thin films did not influence the composition of Cr films and the stability of itsthickness, but restrained Fe doping into TiO2.