1Laboratoire de Photonique et Nano-Fabrication, Groupe de physique du Solide et Sciences des Matériaux (GPSSM), Faculté des Sciences et Techniques Université Cheikh Anta Diop de Dakar (UCAD) B.P. 25114 Dakar-Fann Dakar (Senegal)
2Institut National de la Recherche Scientifique Centre – Énergie Matériaux Télécommunications 1650, Boul. Lionel Boulet, Varennes (Québec) J3X 1S2;UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, P O Box 392, Pretoria 2000, South Africa; Nanosciences African Network (NANOAFNET), iThemba LABS, National Research Foundation of South Africa, 1 Old Faure Road, Somerset West 7129, Western Cape, South Africa
3Department of Physics, SARChI Chair in Carbon Technology and Materials, Institute of Applied Materials, University of Pretoria, Pretoria 2001, South Africa
4Institut National de la Recherche Scientifique Centre – Énergie Matériaux Télécommunications 1650, Boul. Lionel Boulet, Varennes (Québec) J3X 1S2
American Journal of Nanomaterials.
2018,
Vol. 6 No. 1, 24-33
DOI: 10.12691/ajn-6-1-3
Copyright © 2018 Science and Education PublishingCite this paper: M Thiam, BD Ngom, O Sakho, NM Ndiaye, M Chaker, N Manyala, AC Beye. Growth of
a-axis Textured Pulsed Laser Deposited VO
2 Nanostructures on Glass Substrate.
American Journal of Nanomaterials. 2018; 6(1):24-33. doi: 10.12691/ajn-6-1-3.
Correspondence to: BD Ngom, Laboratoire de Photonique et Nano-Fabrication, Groupe de physique du Solide et Sciences des Matériaux (GPSSM), Faculté des Sciences et Techniques Université Cheikh Anta Diop de Dakar (UCAD) B.P. 25114 Dakar-Fann Dakar (Senegal). Email:
bdngom@gmail.comAbstract
Vanadium dioxide thin film nanostructures were synthesized by pulsed laser deposition on soda lime glass at a substrate temperature of 600°C and an oxygen ambient pressure of 15 mTorr. The effect of cooling pressure on the crystalline orientation of VO2 nanostructures was investigated. As the cooling oxygen pressure is increased, the VO2 nanostructures exhibit sharp a-axis diffraction peaks, showing the growth of (1 0 0) oriented VO2 on glass, which is characteristic of the VO2 monoclinic phase and implies that pure highly a-axis textured VO2 was formed. We found that the growth mechanism and substrate–film interaction play important roles in the development of these well-textured films via the formation of an interlayer of SiO2.
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