Photoluminescence and optical temperature sensing in Sm3+-doped Ba0.85Ca0.15Ti0.90Zr0.10O3 lead-free ceramics |
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Authors: | Chunlin Ma Xingyu Wang Zhixing Gan Weishi Tan Xiaoxiong Wang Jia Zhang Weiping Zhou |
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Affiliation: | 1. School of Science, Nanjing University of Science and Technology, Nanjing 210094, People''s Republic of China;2. School of Physics and Electronic Electrical Engineering, Huaiyin Normal University, Huaian 223001, People''s Republic of China;3. Key Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, People''s Republic of China;4. All-Solid-State Energy Storage Materials and Devices Key Laboratory of Hunan Province, College of Information and Electronic Engineering, Hunan City University, Yiyang 413002, People''s Republic of China |
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Abstract: | A series of orange-red emitting Sm3+ activated Ba0.85Ca0.15Ti0.90Zr0.10O3 (BCZT: xSm3+, x?=?0.001–0.007) are synthesized by a conventional solid-state reaction method. The Sm3+ ions composition dependent photoluminescence properties are systematically investigated. Under the excitation of a 407?nm near-ultraviolet light, the ceramics exhibit strong characteristic emission of Sm3+ ions with dominant orange-red emission peak at around 595?nm, which is ascribed to the transition of 4G5/2 → 6H7/2. The BCZT: 0.004Sm3+ ceramic displays the optimal emission among these Sm3+-doped BCZT solid solutions. Moreover, the photoluminescence intensity exhibits extremely sensitive to temperature, suggesting that BCZT: 0.004Sm3+ could be applicable for temperature sensing. A maximum relative sensitivity of 1.89%?K?1 at 453?K is obtained. Furthermore, the existence of ferroelectricity in the BCZT host combined with Sm3+ activated photoluminescence properties could be useful for developing optical-electro multifunctional materials and devices. |
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Keywords: | Photoluminescent properties Multifunctional materials Optical temperature sensing |
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