Title

Electron Transport In Polymer-Derived Amorphous Silicon Oxycarbonitride Ceramics

Abstract

The electron transport behavior of polymer-derived amorphous silicon oxycarbonitride ceramics is studied by measuring their temperature-dependent electrical conductivities. The experimental results are analyzed using theoretical models. The results reveal that the materials exhibit three conduction mechanisms: conduction in extended states, conduction in band tails, and conduction in localized states. Particularly, it is found that in a low-temperature regime, the conduction of the materials follows a band tail hopping mechanism, rather than the previously assumed variable range hopping mechanism. The results also reveal that energy gaps such as E C-E F and E C-E A decrease with increasing pyrolysis temperature. © 2009 The American Ceramic Society.

Publication Date

7-1-2009

Publication Title

Journal of the American Ceramic Society

Volume

92

Issue

7

Number of Pages

1603-1606

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/j.1551-2916.2009.03044.x

Socpus ID

67650021638 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/67650021638

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