Laser-assisted combustion-flame synthesis of diamond films

Y. X. Han; H. Ling; Y. F. Lu

doi:10.2351/1.5060865

Laser-assisted combustion-flame synthesis of diamond films

Y. X. Han, H. Ling, Y. F. Lu

Electrical & Computer Engineering

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

Diamond films were synthesized on cemented tungsten carbide (WC-Co) substrates in open atmosphere using a C₂H₂/O₂ combustion flame with a gas ratio (C₂H₂/O₂) of 0.90. Before, after, and during the synthesis process, a KrF excimer laser with a wavelength of 248 nm and a pulse width of 23 ns was used to illuminate the deposition area. The surface morphology and structures of the deposited films were studied by scanning electron microscopy (SEM) and Raman spectroscopy, respectively. From the SEM images diamond crystals with {100}, {110}, and {111} facets could be observed. The Raman spectra showed an obvious diamond peak along with a broad amorphous carbon peak, which indicated high sp³-bonded structures in the deposited films. The effects of a KrF excimer laser irradiation on the combustion-flame deposition process were discussed.

Original language	English (US)
DOIs	https://doi.org/10.2351/1.5060865
State	Published - 2006
Event	ICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics - Scottsdale, AZ, United States Duration: Oct 30 2006 → Nov 2 2006

Conference

Conference	ICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics
Country	United States
City	Scottsdale, AZ
Period	10/30/06 → 11/2/06

ASJC Scopus subject areas

Electrical and Electronic Engineering
Geochemistry and Petrology

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title = "Laser-assisted combustion-flame synthesis of diamond films",

abstract = "Diamond films were synthesized on cemented tungsten carbide (WC-Co) substrates in open atmosphere using a C2H2/O2 combustion flame with a gas ratio (C2H2/O2) of 0.90. Before, after, and during the synthesis process, a KrF excimer laser with a wavelength of 248 nm and a pulse width of 23 ns was used to illuminate the deposition area. The surface morphology and structures of the deposited films were studied by scanning electron microscopy (SEM) and Raman spectroscopy, respectively. From the SEM images diamond crystals with {100}, {110}, and {111} facets could be observed. The Raman spectra showed an obvious diamond peak along with a broad amorphous carbon peak, which indicated high sp3-bonded structures in the deposited films. The effects of a KrF excimer laser irradiation on the combustion-flame deposition process were discussed.",

author = "Han, {Y. X.} and H. Ling and Lu, {Y. F.}",

year = "2006",

doi = "10.2351/1.5060865",

language = "English (US)",

note = "ICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics ; Conference date: 30-10-2006 Through 02-11-2006",

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T1 - Laser-assisted combustion-flame synthesis of diamond films

AU - Han, Y. X.

AU - Ling, H.

AU - Lu, Y. F.

PY - 2006

Y1 - 2006

N2 - Diamond films were synthesized on cemented tungsten carbide (WC-Co) substrates in open atmosphere using a C2H2/O2 combustion flame with a gas ratio (C2H2/O2) of 0.90. Before, after, and during the synthesis process, a KrF excimer laser with a wavelength of 248 nm and a pulse width of 23 ns was used to illuminate the deposition area. The surface morphology and structures of the deposited films were studied by scanning electron microscopy (SEM) and Raman spectroscopy, respectively. From the SEM images diamond crystals with {100}, {110}, and {111} facets could be observed. The Raman spectra showed an obvious diamond peak along with a broad amorphous carbon peak, which indicated high sp3-bonded structures in the deposited films. The effects of a KrF excimer laser irradiation on the combustion-flame deposition process were discussed.

AB - Diamond films were synthesized on cemented tungsten carbide (WC-Co) substrates in open atmosphere using a C2H2/O2 combustion flame with a gas ratio (C2H2/O2) of 0.90. Before, after, and during the synthesis process, a KrF excimer laser with a wavelength of 248 nm and a pulse width of 23 ns was used to illuminate the deposition area. The surface morphology and structures of the deposited films were studied by scanning electron microscopy (SEM) and Raman spectroscopy, respectively. From the SEM images diamond crystals with {100}, {110}, and {111} facets could be observed. The Raman spectra showed an obvious diamond peak along with a broad amorphous carbon peak, which indicated high sp3-bonded structures in the deposited films. The effects of a KrF excimer laser irradiation on the combustion-flame deposition process were discussed.

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Laser-assisted combustion-flame synthesis of diamond films

Abstract

Conference

ASJC Scopus subject areas

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