Document Type

Article

Date of Original Version

4-15-1983

DOI

10.1103/PhysRevB.27.5032

Abstract

A new amorphous semiconductor alloy system SixCxFy has been prepared by rf sputtering of polycrystalline SiC in an Ar+SiF4 atmosphere. Dark conductivity and optical absorption of thin films are measured as functions of F concentration. Infrared spectra indicate a preferential attachment of fluorine to carbon over silicon. The bonded fluorine concentration is estimated to be as high as 40 at. %. The principal reststrahlen band shifts to higher frequencies and appears to sharpen with the increase of fluorine concentration. Fluorinated films are observed to be resistant to high-temperature annealing.

Publisher Statement

©1983 The American Physical Society

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