Title

Optical Absorption in Polymer-Derived Amorphous Silicon Oxycarbonitrides

Authors

Authors

Y. S. Wang; T. Jiang; L. G. Zhang;L. N. An

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Am. Ceram. Soc.

Keywords

ALPHA-SI-H; ELECTRICAL-CONDUCTIVITY; CARBONITRIDE CERAMICS; HIGH-TEMPERATURE; SEMICONDUCTORS; PIEZORESISTIVITY; SYSTEMS; Materials Science, Ceramics

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.

Journal Title

Journal of the American Ceramic Society

Volume

92

Issue/Number

12

Publication Date

1-1-2009

Document Type

Article

DOI Link

http://dx.doi.org/10.1111/j.1551-2916.2009.03333.x

Language

English

First Page

3111

Last Page

3113

WOS Identifier

WOS:000272129400050

ISSN

0002-7820

Recommended Citation

"Optical Absorption in Polymer-Derived Amorphous Silicon Oxycarbonitrides" (2009). Faculty Bibliography 2000s. 2295.
https://stars.library.ucf.edu/facultybib2000/2295