THERMAL-ANALYSIS OF HYDROGENATED AMORPHOUS-CARBON FILMS PREPARED BY PLASMA ENHANCED CHEMICAL VAPOR-DEPOSITION

被引：12

作者：

KIM, MH

LEE, JY

机构：

[1] Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Seoul, Cheongryang

来源：

JOURNAL OF MATERIALS SCIENCE | 1991年 / 26卷 / 17期

关键词：

D O I：

10.1007/BF00612418

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydrogenated amorphous carbon (a-C:H) films were produced from propane and argon by an inductively coupled radio frequency (r.f.) glow discharge process under a particular deposition condition. Thermal analysis for the deposit by GC, DSC, DTA, and TG gave information for the structural changes upon heating. Most C-H vibration spectra disappeared by heating up to 600-degrees-C. The gas desorption began above 300-degrees-C and reached maxima above 650-degrees-C with several peaks. The desorption reaction was endothermic. Up to 600-degrees-C the desorbed gases was not the hydrogen. The large weight change was observed without the thickness reduction. The weight change rate was maximum at 480-degrees-C. Hydrocarbons are believed to desorb below 600-degrees-C. A hydrocarbon desorption model is suggested. Hydrocarbons are formed in the inner surface of a microvoid and effuse out through the interconnected microvoids in the column boundaries. The proposed desorption reaction is also endothermic.

引用

页码：4787 / 4794

页数：8

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