• Aucun résultat trouvé

Improving the sensitivity of Raman signal of ZnOthin films deposited on silicon substrate

N/A
N/A
Info
Télécharger
Protected

Academic year: 2021

Partager "Improving the sensitivity of Raman signal of ZnOthin films deposited on silicon substrate"

Copied!
1
0
0

Chargement.... (Voir le texte intégral maintenant)

Texte intégral

(1)

Vibrational Spectroscopy

Volume 62, 2012, Pages 217-221

Improving the sensitivity of Raman signal of ZnO thin films deposited on silicon substrate

A. Hammouda, A. Canizarès, P. Simon, A. Boughalout, M. Kechouane

Abstract: Raman spectroscopy results of DC reactive sputtering of ZnO thin films deposited on silicon substrates are reported.

Monocrystalline silicon wafers are frequently used as substrates for thin film deposition, and when working on thin films materials of rather low Raman cross-sections such as ZnO, it is difficult and even sometimes hopeless to extract the Raman information relevant to the film from the silicon signal.In this paper, we show that using a 457 nm wavelength of the laser excitation combined with the effect of silicon Raman selection rules through convenient orientation of the silicon substrate, the 520 cm-1 Si signal can be sufficiently attenuated to give access to the ZnO Raman information, whatever the important difference of intensity between them.

Keywords : Raman spectroscopy, Thin films, Silicon, Zinc oxide, DC reactive sputtering deposition

Centre de Recherche en Technologies Industrielles - CRTI - www.crti.dz

Powered by TCPDF (www.tcpdf.org)

Références

Télécharger maintenant ( PDF - 1 Page - 7.59 KB )

Documents relatifs

Succession in the aquatic Sarracenia purpurea community: deterministic or driven by contingency?

To determine whether succession in an aquatic system is deterministic or dominated by contin- gency, and the role of higher trophic level interac- tions and resources in

Effect of Substrates on the Properties of ZnO Thin Films Grown by Pulsed Laser Deposition

Polycrystalline zinc oxide (ZnO) thin films have been deposited at 450˚C onto glass and silicon substrates by pulsed laser deposition technique (PLD).. The effects of glass

Proprieties of ZnO thin films electro deposited

Le présent travail consiste à étudier et comprendre le comportement du ZnO déposé par spray pyrolyse, avec le recuit de frittage à hautes températures de la métallisation

Proprieties of ZnO thin films electro deposited

On remarque sur la figure 5, que le coefficient d’absorption est très faible dans la gamme du visible et qu’il augmente légèrement avec la température de recuit. Il y a

Properties of Co-doped ZnO thin films grown bypulsed laser deposition on glass substrates

X-ray diffraction patterns showed that the Codoped ZnO films crystallize in a hexagonal wurtzite type structure with a strong (002) orientation, and the grain sizes calculated

PULSED LASER IRRADIATION OF NICKEL THIN FILMS ON SILICON

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des

Contribution a l’étude du voilement des plaques composites

Les figures 5.3 montre l’effet de l’indice k sur la température critique de voilement T cr pour différentes l’épaisseurs de l’âme t C pour des plaques sandwich en FGM sous

Recherche de biomarqueurs sanguins de la plasticité lipidique chez le porc et le poulet

(2014) showed that the activity of oxidative enzymes was higher in the liver of chickens fed the LL diet by comparison with the chickens fed the HL diet. The lower