Influence of ion-beam energy and substrate temperature on the synthesis of carbon nitride thin films by nitrogen-ion-assisted pulsed laser deposition

Y. F. Lu, Z. M. Ren, T. C. Chong, B. A. Cheong, S. I. Pang, J. P. Wang, K. Li

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Carbon nitride thin films were deposited on silicon wafers by pulsed KrF excimer laser (wavelength 248 nm, duration 23 ns) ablation of graphite with assistance of nitrogen ion beam bombardment. X-ray photoelectron spectroscopy, Raman spectroscopy, and ellipsometry were used to identify the binding structure, nitrogen content, and optical properties of the deposited thin films. The influence of the nitrogen ion beam energy on the compositional, electronic, and optical properties of the deposited thin films was investigated. The thin films deposited with nitrogen ion bombardment had an N/C ratio of 0.43. Raman spectroscopy measurements indicated the formation of CN triple bonds in the deposited thin films. The optical band gap Eopt was observed to decrease with the nitrogen ion energy. A nitrogen ion energy between 50 and 100 eV was deduced to be the optimal condition for depositing the carbon nitride thin films.

Original languageEnglish (US)
Pages (from-to)4954-4958
Number of pages5
JournalJournal of Applied Physics
Volume86
Issue number9
DOIs
StatePublished - Nov 1 1999

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carbon nitrides
nitrogen ions
pulsed laser deposition
ion beams
synthesis
thin films
temperature
energy
bombardment
Raman spectroscopy
optical properties
excimer lasers
ablation
ellipsometry
pulsed lasers
graphite
photoelectron spectroscopy
wafers
nitrogen
silicon

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Influence of ion-beam energy and substrate temperature on the synthesis of carbon nitride thin films by nitrogen-ion-assisted pulsed laser deposition. / Lu, Y. F.; Ren, Z. M.; Chong, T. C.; Cheong, B. A.; Pang, S. I.; Wang, J. P.; Li, K.

In: Journal of Applied Physics, Vol. 86, No. 9, 01.11.1999, p. 4954-4958.

Research output: Contribution to journalArticle

Lu, Y. F. ; Ren, Z. M. ; Chong, T. C. ; Cheong, B. A. ; Pang, S. I. ; Wang, J. P. ; Li, K. / Influence of ion-beam energy and substrate temperature on the synthesis of carbon nitride thin films by nitrogen-ion-assisted pulsed laser deposition. In: Journal of Applied Physics. 1999 ; Vol. 86, No. 9. pp. 4954-4958.
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AU - Li, K.

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