Novel S,N co-doped Ba2In2-xCrxO5+y oxides: Synthesis and optical properties |
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| Affiliation: | 1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China;2. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian, 350002, China;1. Kocaeli University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, TR-41380, Kocaeli, Turkey;2. Gebze Technical University, Institute of Energy Technologies, TR-41400, Gebze, Kocaeli, Turkey;1. School of Materials Science and Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450045, China;2. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China;3. School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450045, China;1. Hebei University of Technology, Tianjin, 300130, China;2. National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering, Beijing, 100072, China;1. School of Material Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi''an, 710021, PR China;2. Key Laboratory of Materials Processing Engineering, College of Materials Science and Engineering, Xi''an Shiyou University, Xi''an, 710065, PR China;1. School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan, 411105, PR China;2. Key Laboratory of Low Dimensional Materials and Application Technology, Xiangtan University, Ministry of Education, Xiangtan, Hunan, 411105, PR China;3. Hunan Provincial Key Laboratory of Thin Film Materials and Devices, Xiangtan, Hunan, 411105, PR China |
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| Abstract: | The (S, N) co-doped Ba2In2-xCrxO5+y (0 ≤ x ≤ 0.5) oxides are successfully obtained by mixing the Ba2In2-xCrxO5+y oxides and thiourea through a simple ball milling method followed by sintering at 400 °C for 3 h. The colors of the compounds change from orange-brown to yellow-green after reacting with thiourea. When Cr amount is small (x = 0.1), the crystal structure of (S, N) co-doped Ba2In2-xCrxO5+y is orthorhombic Ba2In2O5 phase. When x ≥ 0.3, the crystal structure of the sample is cubic BaInO2.5 phase. And this phase transition is the same as Ba2In2-xCrxO5+y. XPS results reveal that Cr6+ in Ba2In2-xCrxO5+y (0 ≤ x ≤ 0.5) oxides are reduced to Cr3+ after sintering. S exists in both cation and anion forms, and N exists in substitutional forms. UV–Vis analysis indicates that the yellow-green hue comes from the d-d transition of Cr3+, and the doping of S, N ions leads to a red shift of the absorption edge of the samples. |
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| Keywords: | (S N) co-doping High-energy ball milling Optical properties Yellow-green oxide |
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