Formation and emission spectroscopy of laser generated nanoparticles

P. Heszler, K. Elihn, L. Landström, M. Boman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Iron nanoparticles, with both fcc and bcc structure and with a protective carbon shell against oxidation, were generated by laser-assisted photolytic chemical vapor decomposition of ferrocene (FeCp2). Amorphous W and WN0,3 nanoparticles were formed by laser ablation of solid W in Ar and in N2 ambient, respectively. Laser-assisted chemical vapor deposition of W yielded crystalline tungsten nanoparticles (β phase) from WF6/H2/Ar gas mixture. ArF excimer laser was used as radiation source for all the experiments. Measurements and analysis of the emitted blackbody-like radiation from the laser heated particles were performed, dominant cooling processes as evaporation and heat transfer by the ambient gases were identified. The particles could be heated up to the boiling and melting point of iron and tungsten, respectively. Lognormal particle size-distributions were found for Fe/C and W nanoparticles generated by vapor decomposition or deposition processes respectively, furthermore modeled at low particle concentration (with no coagulation) limit. The thickness of the carbon shell was practically independent on the laser fluence, while the size of the iron core could be varied with it for the Fe/C particles. The laser ablation yielded no log-normal type of distribution for the amorphous WN0,3 particles.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsL.B. Kish, E.C. Harvey, W.B. Spillman, Jr.
Pages251-262
Number of pages12
Volume4590
DOIs
Publication statusPublished - 2001
EventBioMEMS and Smart Nanostructures - Adelaide, Australia
Duration: Dec 17 2001Dec 19 2001

Other

OtherBioMEMS and Smart Nanostructures
CountryAustralia
CityAdelaide
Period12/17/0112/19/01

Fingerprint

Emission spectroscopy
Nanoparticles
nanoparticles
Lasers
Laser ablation
Iron
spectroscopy
lasers
Tungsten
iron
Vapors
laser ablation
Decomposition
tungsten
Radiation
Carbon
Boiling point
vapors
Excimer lasers
decomposition

Keywords

  • Emission spectroscopy
  • Iron and tungsten nanoparticles
  • Laser ablation
  • LCVD
  • Size-distribution

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Heszler, P., Elihn, K., Landström, L., & Boman, M. (2001). Formation and emission spectroscopy of laser generated nanoparticles. In L. B. Kish, E. C. Harvey, & W. B. Spillman, Jr. (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4590, pp. 251-262) https://doi.org/10.1117/12.454612

Formation and emission spectroscopy of laser generated nanoparticles. / Heszler, P.; Elihn, K.; Landström, L.; Boman, M.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / L.B. Kish; E.C. Harvey; W.B. Spillman, Jr. Vol. 4590 2001. p. 251-262.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Heszler, P, Elihn, K, Landström, L & Boman, M 2001, Formation and emission spectroscopy of laser generated nanoparticles. in LB Kish, EC Harvey & WB Spillman, Jr. (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4590, pp. 251-262, BioMEMS and Smart Nanostructures, Adelaide, Australia, 12/17/01. https://doi.org/10.1117/12.454612
Heszler P, Elihn K, Landström L, Boman M. Formation and emission spectroscopy of laser generated nanoparticles. In Kish LB, Harvey EC, Spillman, Jr. WB, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4590. 2001. p. 251-262 https://doi.org/10.1117/12.454612
Heszler, P. ; Elihn, K. ; Landström, L. ; Boman, M. / Formation and emission spectroscopy of laser generated nanoparticles. Proceedings of SPIE - The International Society for Optical Engineering. editor / L.B. Kish ; E.C. Harvey ; W.B. Spillman, Jr. Vol. 4590 2001. pp. 251-262
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