作者：Wrobel, AM;Walkiewicz-Pietrzykowska, A;Ahola, M;Vayrynen, IJ;Ferrer-Fernandez, FJ;Gonzalez-Elipe, AR;

作者单位：Polish Acad Sci, Ctr Mol & Macromol Studies, PL-90363 Lodz, Poland.;Polish Acad Sci, Ctr Mol & Macromol Studies, PL-90363 Lodz, Poland.;Univ Turku, Dept Phys, FIN-20014 Turku, Finland.;Univ Turku, Dept Phys, FIN-20014 Turku, Finland.;Ctr Nacl Aceleradores

刊名：Chemical vapor deposition

ISSN：0948-1907

出版年：2009-01-05

卷：15

期：40911

起页：39

止页：46

分类号：TQ175

语种：英文

关键词：film composition;film structure;RHP-CVD;silicon carbide film;triethylsilane precursors;

内容简介

Amorphous hydrogenated silicon carbide (a-SiC:H) films are produced by remote microwave hydrogen plasma (RHP)CVD using triethylsilane (TrES) as the single-source precursor. The reactivity of particular bonds of the precursor in the activation step is examined using tetraethylsilane as a model compound for the RHP-CVD experiments. The susceptibility of a TrES precursor towards film formation is characterized by determining the yield of RHP-CVD and comparing it with that of the trimethylsilane precursor. The effect of substrate temperature (T,) on the rate of the RHP-CVD process, chemical composition., and chemical structure of the resulting a-SiC:H films is reported. The substrate temperature dependence of the film growth rate implies that film growth is independent of the temperature and RHP-CVD is a mass transport-limited process. The examination of the a-SiC:H films, performed by means of X-ray photoelectron spectroscopy (XPS), elastic recoil detection analysis (ERDA), and Fourier transform infrared absorption spectroscopy (FTIR), reveals that the increase in the substrate temperature from 30 degrees C to 400 degrees C causes the elimination of organic moieties from the film and the formation of a Si-carbidic network structure. On the basis of the results of the structural study, the chemistry involved in film formation is proposed.