Formation of a nanocomposite from plasma enhanced chemical vapour deposition multilayer structures

Autor: T. Puzzer, E. Pink, Giuseppe Scardera, D. Bellet, Gavin Conibeer, E. Bellet-Amalric
Rok vydání: 2008
Předmět:
Zdroj: Journal of Crystal Growth. 310:3685-3689
ISSN: 0022-0248
DOI: 10.1016/j.jcrysgro.2008.05.019
Popis: This work reports on the crystallization of α - Si 3 N 4 , β - Si 3 N 4 , and silicon in plasma enhanced chemical vapour deposition silicon nitride films grown with SiH 4 and NH 3 at 400 ∘ C and annealed at 1150 ∘ C . Nanometric multilayer structures, composed of alternating layers of silicon nitride and silicon-rich nitride, were used as the starting material. The final product is a thin-film Si – Si 3 N 4 nanocomposite. The formation of this composite is verified using glancing incidence X-ray diffraction, transmission electron microscopy and Fourier transform infra-red spectroscopy. Annealing investigations indicate that the multilayer structure plays a key role in the formation of this composite and for the relatively low temperature formation of α - and β - Si 3 N 4 nanocrystals.
Databáze: OpenAIRE