Korean Journal of Materials Research, Vol.13, No.1, 31-35, January, 2003
CH 3 OH/H 2 O 가스의 기상활성법을 이용한 다이아몬드 박막성장 과정에서의 OES분석
OES Analysis for Diamond Film Growth by Vapor Activation Method Using CH 3 OH/H 2 O Gas
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The intensity is measured as functions of both distance from filament to substrate and CH 3 OH/( CH 3 OH+ H 2 O) ratio by OES(Optical Emission Spectroscopy) to investigate the effects of activation species such as H α , H β , H ΥC 3 , CH on diamond film growth. H α increases as CH 3 OH composition decreases, while CH increases as CH 3 OH composition increases. The intensity of H α decreases as the distance increases and that of CH increases as the distance increases. The intensities of other activation species of H β , H ΥC 3 , do not vary as a function of measured position distance. It varies randomly. It means that various parameters for depositing diamond thin film can be explained by the intensity(density) change of activation species, as a function of the distance of the filament.
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