Title

Optical Absorption In Polymer-Derived Amorphous Silicon Oxycarbonitrides

Abstract

Three amorphous silicon oxycarbonitrides are prepared by thermal decomposition of a polymeric precursor at different temperatures. The optical absorption spectra of these materials are measured over a wide range of excitation energies from 0.4 to 5.0 eV. The spectra are analyzed using theoretical models. Two absorption transitions are identified between the deep defect energy level and the delocalized conduction band and between the two delocalized bands. It is found that the band gaps measured decrease with increasing pyrolysis temperature. The results obtained are discussed. © 2009 The American Ceramic Society.

Publication Date

12-1-2009

Publication Title

Journal of the American Ceramic Society

Volume

92

Issue

12

Number of Pages

3111-3113

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/j.1551-2916.2009.03333.x

Socpus ID

70450257631 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/70450257631

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