Laser-assisted combustion-flame synthesis of diamond films

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

Research output: Contribution to conferencePaper

3 Citations (Scopus)

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 languageEnglish (US)
StatePublished - Dec 1 2006
EventICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics - Scottsdale, AZ, United States
Duration: Oct 30 2006Nov 2 2006

Conference

ConferenceICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics
CountryUnited States
CityScottsdale, AZ
Period10/30/0611/2/06

Fingerprint

Flame synthesis
Diamond
Diamond films
Excimer lasers
diamond
Diamonds
combustion
laser
Scanning electron microscopy
Lasers
Tungsten carbide
Amorphous carbon
Laser beam effects
scanning electron microscopy
Surface structure
Surface morphology
Raman spectroscopy
Raman scattering
Gases
tungsten

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Electrical and Electronic Engineering

Cite this

Han, Y. X., Ling, H., & Lu, Y. F. (2006). Laser-assisted combustion-flame synthesis of diamond films. Paper presented at ICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics, Scottsdale, AZ, United States.

Laser-assisted combustion-flame synthesis of diamond films. / Han, Y. X.; Ling, H.; Lu, Y. F.

2006. Paper presented at ICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics, Scottsdale, AZ, United States.

Research output: Contribution to conferencePaper

Han, YX, Ling, H & Lu, YF 2006, 'Laser-assisted combustion-flame synthesis of diamond films', Paper presented at ICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics, Scottsdale, AZ, United States, 10/30/06 - 11/2/06.
Han YX, Ling H, Lu YF. Laser-assisted combustion-flame synthesis of diamond films. 2006. Paper presented at ICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics, Scottsdale, AZ, United States.
Han, Y. X. ; Ling, H. ; Lu, Y. F. / Laser-assisted combustion-flame synthesis of diamond films. Paper presented at ICALEO 2006 - 25th International Congress on Applications of Laser and Electro-Optics, Scottsdale, AZ, United States.
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