Growth and Characterization of (Tb,Yb) Co-Doping Sprayed ZnO Thin Films

Structural, optical and electrical properties of (ytterbium/terbium) co-doped ZnO thin films deposited on glass substrates using the spray pyrolysis method were investigated. The films exhibited the hexagonal wurtzite structure with a preferential orientation along (002) direction. No secondary phas...

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Main Authors:	A. El hat, I. Chaki, R. Essajai, A. Mzerd, G. Schmerber, M. Regragui, A. Belayachi, Z. Sekkat, A. Dinia, A. Slaoui, M. Abd-Lefdil
Format:	Article
Language:	English
Published:	MDPI AG 2020-03-01
Series:	Crystals
Subjects:	zno tb yb spray pyrolysis thin films rare earth
Online Access:	https://www.mdpi.com/2073-4352/10/3/169

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spelling	doaj-6f2bf1f7b5ba48b0b2c7f5bebb7f1e002020-11-25T02:27:37ZengMDPI AGCrystals2073-43522020-03-0110316910.3390/cryst10030169cryst10030169Growth and Characterization of (Tb,Yb) Co-Doping Sprayed ZnO Thin FilmsA. El hat0I. Chaki1R. Essajai2A. Mzerd3G. Schmerber4M. Regragui5A. Belayachi6Z. Sekkat7A. Dinia8A. Slaoui9M. Abd-Lefdil10Group of Semiconductors and Environmental Sensor Technologies- Energy Research Center, Faculty of Science, Mohammed V University, B. P. 1014, Rabat 1957, MoroccoFaculty of Sciences, Mohammed V University, Rabat 1957, MoroccoGroup of Semiconductors and Environmental Sensor Technologies- Energy Research Center, Faculty of Science, Mohammed V University, B. P. 1014, Rabat 1957, MoroccoGroup of Semiconductors and Environmental Sensor Technologies- Energy Research Center, Faculty of Science, Mohammed V University, B. P. 1014, Rabat 1957, MoroccoInstitute of Physics and Chemistry of Materials of Strasbourg, University of Strasbourg, CNRS UMR 7504, 23 rue du Loess, B.P. 43, CEDEX 2, F-67034 Strasbourg, FranceFaculty of Sciences, Mohammed V University, Rabat 1957, MoroccoFaculty of Sciences, Mohammed V University, Rabat 1957, MoroccoFaculty of Sciences, Mohammed V University, Rabat 1957, MoroccoInstitute of Physics and Chemistry of Materials of Strasbourg, University of Strasbourg, CNRS UMR 7504, 23 rue du Loess, B.P. 43, CEDEX 2, F-67034 Strasbourg, FranceInstitute of Physics and Chemistry of Materials of Strasbourg, University of Strasbourg, CNRS UMR 7504, 23 rue du Loess, B.P. 43, CEDEX 2, F-67034 Strasbourg, FranceFaculty of Sciences, Mohammed V University, Rabat 1957, MoroccoStructural, optical and electrical properties of (ytterbium/terbium) co-doped ZnO thin films deposited on glass substrates using the spray pyrolysis method were investigated. The films exhibited the hexagonal wurtzite structure with a preferential orientation along (002) direction. No secondary phase was observed in the X-ray diffraction detection limit. Atomic force microscopy (AFM) was performed and root means square roughness (RMS) of our samples decreased with terbium content. Photoluminescence measurements showed a luminescence band at 980 nm which is characteristic of Yb<sup>3+</sup> transition between the electronic levels <sup>2</sup>F<sub>5/2</sub> to <sup>2</sup>F<sub>7/2</sub>. This is experimental evidence for an efficient energy transfer from the ZnO matrix to Yb. Hall Effect measurements gave a low electrical resistivity value around 6.0 × 10<sup>−3</sup> Ω.cm. Such characteristics make these films of interest to photovoltaic devices.https://www.mdpi.com/2073-4352/10/3/169znotbybspray pyrolysisthin filmsrare earth
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	A. El hat I. Chaki R. Essajai A. Mzerd G. Schmerber M. Regragui A. Belayachi Z. Sekkat A. Dinia A. Slaoui M. Abd-Lefdil
spellingShingle	A. El hat I. Chaki R. Essajai A. Mzerd G. Schmerber M. Regragui A. Belayachi Z. Sekkat A. Dinia A. Slaoui M. Abd-Lefdil Growth and Characterization of (Tb,Yb) Co-Doping Sprayed ZnO Thin Films Crystals zno tb yb spray pyrolysis thin films rare earth
author_facet	A. El hat I. Chaki R. Essajai A. Mzerd G. Schmerber M. Regragui A. Belayachi Z. Sekkat A. Dinia A. Slaoui M. Abd-Lefdil
author_sort	A. El hat
title	Growth and Characterization of (Tb,Yb) Co-Doping Sprayed ZnO Thin Films
title_short	Growth and Characterization of (Tb,Yb) Co-Doping Sprayed ZnO Thin Films
title_full	Growth and Characterization of (Tb,Yb) Co-Doping Sprayed ZnO Thin Films
title_fullStr	Growth and Characterization of (Tb,Yb) Co-Doping Sprayed ZnO Thin Films
title_full_unstemmed	Growth and Characterization of (Tb,Yb) Co-Doping Sprayed ZnO Thin Films
title_sort	growth and characterization of (tb,yb) co-doping sprayed zno thin films
publisher	MDPI AG
series	Crystals
issn	2073-4352
publishDate	2020-03-01
description	Structural, optical and electrical properties of (ytterbium/terbium) co-doped ZnO thin films deposited on glass substrates using the spray pyrolysis method were investigated. The films exhibited the hexagonal wurtzite structure with a preferential orientation along (002) direction. No secondary phase was observed in the X-ray diffraction detection limit. Atomic force microscopy (AFM) was performed and root means square roughness (RMS) of our samples decreased with terbium content. Photoluminescence measurements showed a luminescence band at 980 nm which is characteristic of Yb<sup>3+</sup> transition between the electronic levels <sup>2</sup>F<sub>5/2</sub> to <sup>2</sup>F<sub>7/2</sub>. This is experimental evidence for an efficient energy transfer from the ZnO matrix to Yb. Hall Effect measurements gave a low electrical resistivity value around 6.0 × 10<sup>−3</sup> Ω.cm. Such characteristics make these films of interest to photovoltaic devices.
topic	zno tb yb spray pyrolysis thin films rare earth
url	https://www.mdpi.com/2073-4352/10/3/169
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Growth and Characterization of (Tb,Yb) Co-Doping Sprayed ZnO Thin Films

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