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Yttrium silicate and oxonitridosilicate luminescent materials from a silicone resin and nano-sized fillers
Affiliation:1. Dipartimento di Ingegneria Industriale, University of Padova, Italy;2. Institut für Keramik, Glas- und Baustofftechnik, TU Bergakademie Freiberg, Agricolastraße 17, 09596 Freiberg, Germany;3. Dipartimento di Ingegneria Industriale, University of Trento, via Sommarive 9, I-38132 Povo, Trento, Italy;4. Department of Environmental Sciences, Informatics and Statistics, Università Ca’ Foscari Venezia, Dorsoduro 2137, I-30123 Venezia, Italy;1. Department of Physics, College of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, PR China;2. State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China;3. Nanjing Sujie School, Nanjing 210000, PR China;4. Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100195, PR China;1. Laboratory for Developing New Materials and their Characterization, Department of Physics, Faculty of Science, University of Setif 1, 19000 Setif, Algeria;2. Laboratoire de Physique Quantique et de Modélisation Mathématique (LPQ3M), Département de Technologie, Université de Mascara, 29000 Mascara, Algeria;3. Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;4. Materials Modelling Lab, Department of Physics, Islamia College, Peshawar, Pakistan;5. Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia;1. Department of Chemistry, University of North Florida, Jacksonville, FL 32224, USA;2. Department of Physics, University of Puerto Rico, Mayagüez, PR 00681, USA;3. Optical Spectroscopy & Nano-Materials Lab, New College of Florida, Sarasota, FL 34243, USA
Abstract:Yttrium silicate and oxonitridosilicate ceramic powders have been successfully prepared by heat treatment, at 1300–1400 °C, of a silicone resin embedding Y2O3 nano-sized particles as reactive fillers. Nano-sized RE-oxides (Eu2O3, CeO2), used as secondary additives, promoted the development of apatite phase, in both air and N2 atmosphere. For treatments in nitrogen, the only crystal phase consisted of yttrium nitrogen apatite, mixed with amorphous silicon oxycarbide (SiOC). Eu-doped and Ce-doped yttrium silicates were characterized by means of UV–visible luminescence and ion beam induced luminescence (IBIL). Strong luminescence features were observed, depending on the conditions of thermal treatment.
Keywords:Polymer-derived ceramics  Silicate apatite  Oxynitride  Luminescence
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