Interface structure of sputter deposited CNx film on silicon substrate

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)2685-2687
Journal / PublicationMaterials Letters
Volume62
Issue number17-18
Publication statusPublished - 30 Jun 2008

Abstract

Amorphous carbon nitride (CNx, x = 0.05) films were reactively sputtered on Si(100) substrate, and the interface structure was studied by transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). In cross-sectional TEM a gray interlayer about 5 nm thick between the bulk CNx film and silicon substrate is observed, and the interface is dense. A little Si impurity (<1 at.%) is revealed in the films deposited for short time (7 s and 17 s) by XPS measurement. The in-depth XPS analyses indicate that there exists an interlayer with Si impurity above, and a sub-surface layer with C and N below the original surface of silicon substrate. The two layers have different chemical composition and bonding state. © 2008 Elsevier B.V. All rights reserved.

Research Area(s)

  • Carbon nitride, Microstructure, Sputtering, Thin films

Citation Format(s)

Interface structure of sputter deposited CNx film on silicon substrate. / Fu, T.; Zheng, Y.; Shen, Y. G.
In: Materials Letters, Vol. 62, No. 17-18, 30.06.2008, p. 2685-2687.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review