Light emission from tungsten nanoparticles during laser-assisted chemical vapor deposition of tungsten

P. Heszler, L. Landström, M. Lindstam, J. O. Carlsson

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Recently we reported that phosphorescent light emission was observed upon irradiation of WF6/H2/noble gas (Ar, Kr, Ne, Xe) mixtures by ArF excimer laser [P. Heszler, P. Mogyorósi, and J.-O. Carlsson, J. Appl. Phys. 78, 5277 1995], originating from tungsten nanoparticles. In this work results of additional measurements on the same system are presented, and we conclude that the reported phosphorescence is a blackbody-like radiation. Taking into account the emissivity of the particles calculated on the base of the Mie theory, it was possible to determine the dependence of the temperature of the tungsten nanoparticles on time after the laser pulse by means of time-resolved spectroscopy. It is shown that surface reactions on the hot nanoparticles contribute significantly to the growth. The size distribution was found lognormal by transmission electron microscopy measurements.

Original languageEnglish
Pages (from-to)3967-3970
Number of pages4
JournalJournal of Applied Physics
Volume89
Issue number7
DOIs
Publication statusPublished - Apr 1 2001

Fingerprint

light emission
tungsten
vapor deposition
nanoparticles
lasers
Mie scattering
phosphorescence
emissivity
excimer lasers
surface reactions
rare gases
transmission electron microscopy
irradiation
radiation
pulses
spectroscopy
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Light emission from tungsten nanoparticles during laser-assisted chemical vapor deposition of tungsten. / Heszler, P.; Landström, L.; Lindstam, M.; Carlsson, J. O.

In: Journal of Applied Physics, Vol. 89, No. 7, 01.04.2001, p. 3967-3970.

Research output: Contribution to journalArticle

Heszler, P. ; Landström, L. ; Lindstam, M. ; Carlsson, J. O. / Light emission from tungsten nanoparticles during laser-assisted chemical vapor deposition of tungsten. In: Journal of Applied Physics. 2001 ; Vol. 89, No. 7. pp. 3967-3970.
@article{6a990e0b61b9455d894a0b44d81b8521,
title = "Light emission from tungsten nanoparticles during laser-assisted chemical vapor deposition of tungsten",
abstract = "Recently we reported that phosphorescent light emission was observed upon irradiation of WF6/H2/noble gas (Ar, Kr, Ne, Xe) mixtures by ArF excimer laser [P. Heszler, P. Mogyor{\'o}si, and J.-O. Carlsson, J. Appl. Phys. 78, 5277 1995], originating from tungsten nanoparticles. In this work results of additional measurements on the same system are presented, and we conclude that the reported phosphorescence is a blackbody-like radiation. Taking into account the emissivity of the particles calculated on the base of the Mie theory, it was possible to determine the dependence of the temperature of the tungsten nanoparticles on time after the laser pulse by means of time-resolved spectroscopy. It is shown that surface reactions on the hot nanoparticles contribute significantly to the growth. The size distribution was found lognormal by transmission electron microscopy measurements.",
author = "P. Heszler and L. Landstr{\"o}m and M. Lindstam and Carlsson, {J. O.}",
year = "2001",
month = "4",
day = "1",
doi = "10.1063/1.1346659",
language = "English",
volume = "89",
pages = "3967--3970",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "7",

}

TY - JOUR

T1 - Light emission from tungsten nanoparticles during laser-assisted chemical vapor deposition of tungsten

AU - Heszler, P.

AU - Landström, L.

AU - Lindstam, M.

AU - Carlsson, J. O.

PY - 2001/4/1

Y1 - 2001/4/1

N2 - Recently we reported that phosphorescent light emission was observed upon irradiation of WF6/H2/noble gas (Ar, Kr, Ne, Xe) mixtures by ArF excimer laser [P. Heszler, P. Mogyorósi, and J.-O. Carlsson, J. Appl. Phys. 78, 5277 1995], originating from tungsten nanoparticles. In this work results of additional measurements on the same system are presented, and we conclude that the reported phosphorescence is a blackbody-like radiation. Taking into account the emissivity of the particles calculated on the base of the Mie theory, it was possible to determine the dependence of the temperature of the tungsten nanoparticles on time after the laser pulse by means of time-resolved spectroscopy. It is shown that surface reactions on the hot nanoparticles contribute significantly to the growth. The size distribution was found lognormal by transmission electron microscopy measurements.

AB - Recently we reported that phosphorescent light emission was observed upon irradiation of WF6/H2/noble gas (Ar, Kr, Ne, Xe) mixtures by ArF excimer laser [P. Heszler, P. Mogyorósi, and J.-O. Carlsson, J. Appl. Phys. 78, 5277 1995], originating from tungsten nanoparticles. In this work results of additional measurements on the same system are presented, and we conclude that the reported phosphorescence is a blackbody-like radiation. Taking into account the emissivity of the particles calculated on the base of the Mie theory, it was possible to determine the dependence of the temperature of the tungsten nanoparticles on time after the laser pulse by means of time-resolved spectroscopy. It is shown that surface reactions on the hot nanoparticles contribute significantly to the growth. The size distribution was found lognormal by transmission electron microscopy measurements.

UR - http://www.scopus.com/inward/record.url?scp=0035308047&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035308047&partnerID=8YFLogxK

U2 - 10.1063/1.1346659

DO - 10.1063/1.1346659

M3 - Article

AN - SCOPUS:0035308047

VL - 89

SP - 3967

EP - 3970

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 7

ER -