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Role of nitrogen in optical and electrical band gaps of hydrogenated/hydrogen free carbon nitride film
Abstract
We report the optical and electrical band gap energy of amorphous hydrogenated carbon nitride (a-HCNx) and carbon nitride (a-CNx) as a function of nitrogen concentration (N/C). The optical band gap of a-HCNx and a-CNx films has been determined by means of Ellipsometry and UV-VIS. Both optical and electrical band gaps increase with elevated nitrogen concentration. Experimentally obtained electrical band gap is compared with the same one calculated from single particle band gap or carbon nanotube model to observe the dependence like behavior. Moreover, resistivity of the a-HCNx film shows a higher value in comparison to that of the a-CNx film as the nitrogen concentration increases from 0.07 to .54 at room temperature.
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
THIN SOLID FILMS
no. 527,
pages 151 - 157,
ISSN: 0040-6090 - Language:
- English
- Publication year:
- 2013
- Bibliographic description:
- Majumdar A., Bogdanowicz R., Mukherjee S., Hippler R.: Role of nitrogen in optical and electrical band gaps of hydrogenated/hydrogen free carbon nitride film// THIN SOLID FILMS. -Vol. 527, nr. 1 (2013), s.151-157
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.tsf.2012.11.020
- Verified by:
- Gdańsk University of Technology
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