Effect of thermal treatment on linear optical properties of Cu nanoclusters

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dc.contributor.authorKibar R.
dc.contributor.authorÇetin A.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:21:51Z
dc.date.available2024-07-22T08:21:51Z
dc.date.issued2009
dc.description.abstractSilica glass was implanted with 50 keV Cu+ ions at various fluences from 6×1015 to 8×1016 ions/cm2 and thermally-annealed in air between room temperature to 1200 °C. UV/visible spectroscopy measurements reveal absorption bands at characteristics surface plasmon resonance (SPR) frequencies, signifying the formation of copper colloids in silica, even without thermal treatments. Such copper nanoclusters can be attributed to the relatively high mobility of copper atoms, even at ambient conditions. Using the equation derived from the framework of free-electron theory, the average radii of the Cu particles were found to be in the range 2-4 nm from the experimental surface plasmon absorption peaks. Radioluminescence (RL) spectra exhibited broad bands at 410 and 530 nm, associated with the presence of Cu+ ions in the as-implanted samples. The effect of thermal annealing in air on absorption and emission spectra of these Cu-implanted samples, as well as the formation of copper nanoclusters from original Cu+ ions, is discussed. © 2008 Elsevier B.V. All rights reserved.
dc.identifier.DOI-ID10.1016/j.physb.2008.10.037
dc.identifier.issn09214526
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/18797
dc.language.isoEnglish
dc.subjectAbsorption
dc.subjectColloids
dc.subjectCopper
dc.subjectEmission spectroscopy
dc.subjectHeat treatment
dc.subjectIon bombardment
dc.subjectIon implantation
dc.subjectIons
dc.subjectNanoclusters
dc.subjectNanoparticles
dc.subjectOptical properties
dc.subjectOxides
dc.subjectPlasmons
dc.subjectSilica
dc.subjectSurface plasmon resonance
dc.subjectSurface treatment
dc.subjectThermal spraying
dc.subjectAbsorption bands
dc.subjectAmbient conditions
dc.subjectBroad bands
dc.subjectCopper atoms
dc.subjectCopper colloids
dc.subjectCopper nanoclusters
dc.subjectElectron theories
dc.subjectFluences
dc.subjectHigh mobilities
dc.subjectImplanted samples
dc.subjectLinear optical properties
dc.subjectRadioluminescence
dc.subjectRadioluminescence spectrums
dc.subjectRoom temperatures
dc.subjectSilica glasses
dc.subjectSurface plasmon absorptions
dc.subjectSurface plasmons
dc.subjectThermal annealing
dc.subjectThermal treatments
dc.subjectUV/visible spectroscopies
dc.subjectAbsorption spectroscopy
dc.titleEffect of thermal treatment on linear optical properties of Cu nanoclusters
dc.typeArticle

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