| Title |
Effect of deposition on the properties of diamond thin films synthesized by Microwave Plasma Enhanced Chemical Vapor Deposition |
| Authors |
이병수(Lee, Byoung-Soo) ; 이덕출(Lee, Duch-Chool) |
| Keywords |
MPCVD ; Diamond thin film ; Morphology ; Crystallinity ; FWHM |
| Abstract |
In this study, the metastable state diamond thin films have been deposited on Si substrates from methane-hydrogen and oxygen mixture using microwave plasma enhanced chemical vapor deposition (MPCVD) method. Effects in experimental parameters of MPCVD including methane concentrations, oxygen additions, operating pressure, deposition time on the growth rate and crystallinity were investigated. Diamond thin film was synthesized under the following conditions: methane concentration of 0.5%(0.5sccm)~5%(5sccm), oxygen concentration of 0~80%(2.4sccm), operating pressure of 30Torr~70Torr, deposition time of 1~32hr. SEM, XRD, and Raman spectroscopy were employed to analyze the growth rate and morphology, crystallinity and prefered growth direction, and relative amounts of diamond and non-diamond phases, respectively. |