Microstructural and optical properties of SnO2–ZnSnO3 ceramics |
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| Affiliation: | 1. Unité de Physique des dispositifs à Semi-conducteurs UPDS, Faculté des Sciences de Tunis, Tunis El Manar University, Tunisia;2. Physics Department, Faculty of Arts and Sciences, Marmara University, Göztepe, 34722 Istanbul, Turkey;3. Shumen University “Konstantin Preslavsky”, 115 Universitetska str., 9712 Shumen, Bulgaria;1. School of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410076, Hunan, PR China;2. College of Physics and Microelectronics, Hunan University, Changsha 410082, Hunan, PR China;1. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China;2. College of Chemistry and Environment, Henan Institute of Education, Zhengzhou 450006, China;1. School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China;2. Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom;3. School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China;1. Dept. of Materials Science and Solar Energy Research Center, University of Milano Bicocca, via Cozzi 55, 20125 Milan, Italy;2. Dept. of Materials Science, University of Milano Bicocca, via Cozzi 55, 20125 Milan, Italy;1. College of Electric Engineering, Key Laboratory for Electronic Materials of the State Ethnic Affairs Commission, Northwest University for Nationalities, Lanzhou, Gansu 730030, PR China;2. Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;1. Department of Laser Studies, School of Physics, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India;2. Department of Physics, Avinashilingam University, Coimbatore 641043, Tamil Nadu, India;3. Department of Materials Science, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India;4. Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram 695016, Kerala, India |
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| Abstract: | This work deals with some physical investigation on SnO2–ZnSnO3 ceramics grown on glass substrates at different temperatures (450 °C and 500 °C). Structural and optical properties were investigated using X-Ray diffraction (XRD), Raman, infrared (IR) absorption (FTIR), UV–visible spectroscopy and Photoluminescence (PL) techniques. XRD results revealed the existence of a mixture of SnO2/ZnSnO3 phases at different annealing temperatures. Structural analysis showed that both phases are polycrystalline. On the other hand, the optical constants (refractive index, extinction coefficient and the dielectric constants) have been obtained by the transmittance and the reflectance data. The optical band gap energy changed from 3.85 eV to 3.68 eV as substrate temperature increased from 450 °C to 500 °C. Raman, FTIR modes and PL reinforced this finding regarding the existence of biphasic (SnO2 and ZnSnO3) which is detected also by X-Ray diffraction analysis. Finally, the Lattice Compatibility Theory was evoked for explaining the unexpected incorporation of zinc ions in a rhombohedral structure within SnO3 trigonal lattice, rather than the occupation of SnO2 available free loci. All the results have been discussed in terms of annealing temperature. |
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| Keywords: | Ceramics Crystal growth X-ray diffraction Crystal structure |
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