- LPMOCVD 법으로 증착된 TiO$_2$ 박막의 특성
- ㆍ 저자명
- 이하용,박용환,고경현,박정훈,홍국선
- ㆍ 간행물명
- 요업학회지
- ㆍ 권/호정보
- 1999년|36권 9호|pp.901-908 (8 pages)
- ㆍ 발행정보
- 한국세라믹학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Effects of LPMOCVD process parameters on the properties of TiO2 thin film were investigated. Depositions were made in the range of temperature 300-67$0^{circ}C$ with various TTIP(Titanium Tetraisopropoxide) concentrations by contrlling bubbler temperature(40-8$0^{circ}C$) and/or flow rate(30-90 sccm). Post annealing treatments were carried out at 500-80$0^{circ}C$ range in the air. Films deposited at 40$0^{circ}C$ have denser morphology than those of films deposited at 50$0^{circ}C$ and $600^{circ}C$ due to slower deposition rate. Bubbler temperature can affect on the deposition rate in mass transfer controlled regime such as 50$0^{circ}C$ or higher but not below 50$0^{circ}C$ where surface reaction rate becomes important. On the contrary for films deposited above 50$0^{circ}C$ flow rate can raise deposition rate but eventually saturate it at the 50 sccm and above due to retarded adhesion of decomposed species. But for films deposited at 40$0^{circ}C$ deposition rate increases stadily with flow rate. As the film becomes more porous A(200) texture can not be developed and AnataselongrightarrowRutile transition kinetics increases.