Structural, microstructural, and optical properties of Zn1−xMg xO thin films grown onto glass substrate by ultrasonic spray pyrolysis
TypeArticles dans des revues avec comité de lecture
Pure and doped Zn1−xMgxO films were deposited onto glass substrate by ultrasonic spray pyrolysis technique. The variation of lattice constant and the blue shift of near-band-edge emission indicate that Zn2+ ions are successfully substituted by Mg2+ ions within ZnO lattice. At higher Mg content (x ≥ 0.21), a drastic change appears in the morphology, as a result of structural changes from wurtzite (ZnO) structure into a mixture of wurtzite and cubic (MgO) phases. FTIR study indicated the existence of distinct characteristic absorption peaks at ~442 cm−1 for Zn–O stretching mode that shifted toward the red region with the increase in Mg content. In addition to the host phonons of ZnO, one additional band was observed around 523 cm−1, presumably attributed to the Mg-related vibrational mode. The optical constants and thickness of thin films have been determined using experimental transmittance data. The luminescence intensity at 2.63 eV of Zn0.85Mg0.15O thin films was found to be approximately 13 times higher than that of pure ZnO film measured under the same excitation conditions
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Visualiser des documents liés par titre, auteur, créateur et sujet.
Structure, microstructure and determination of optical constants from transmittance data of co-doped Zn0.90Co0.05M0.05O (M@Al, Cu, Cd, Na) films ROGUAI, Sabrina; DJELLOUL, Abdelkader; NOUVEAU, Corinne; SOUIER, T.; DAKHEL, A.A.; BOUOUDINA, M. (Elsevier, 2014)ZnO, Zn0.95Co0.05O and Zn0.90Co0.05M0.05O (M@Al, Cd, Na, Cu) single phase films have been successfully synthesized by ultrasonic spray pyrolysis technique. Structural analysis by X-ray diffraction show that all the films ...
GOLABCZAK, Marcin; JACQUET, Philippe; NOUVEAU, Corinne; FLITI, Romain (Wiley, 2013)In this article the friction coefficients and the wear resistances of MoS2TiW protective coatings manufactured on X38CrMoV5-1 steel samples by using PVD technology are studied. The investi- gations based on tribometer ...
STANISHEVSKY, Andrei; WALOCK, Michael J.; ZOU, Yujiao; IMHOFF, Luc; ZAIRI, Amel; NOUVEAU, Corinne (Elsevier, 2012)Tungsten carbide-based coatings have been used in a wide variety of industrial applications such as high speed cutting tools, extrusion dies, drills, aerospace industries, and more. A few reports on ternary and quaternary ...
Effect of surface finishing such as sand-blasting and CrAlN hard coatings on the cutting edge’s peeling tools’ wear resistance NOUVEAU, Corinne; LABIDI, Chafik; COLLET, Robert; BENLATRECHE, Yacine; DJOUADI, Mohamed Abdou (Elsevier, 2009)The aim of this study is first to define the effect of a surface finishing such as sand-blasting on the geometry of a wood cutting tool and its wear resistance. In addition, the effectiveness of surface coatings like CrAlN ...
BENLATRECHE, Yacine; NOUVEAU, Corinne; MARCHAL, Rémy; FERREIRA-MARTIN, Jean-Pierre; AKNOUCHE, Hamid (Elsevier, 2009)Nowadays, medium density fibreboard (MDF) composite wood is more and more used in the furniture industry to replace bulk wood such as oak, beech, etc. Indeed, this material presents good mechanical properties, is easy to ...