Effect of B-site substitution on the luminescence,thermal stability and temperature sensitivity of Ba2NaNb5O15:Eu3+/Er3+ glass ceramics |
| |
| Affiliation: | 1. School of Mechanical Engineering, Shandong University of Technology, Zibo, 255000, China;2. School of Materials Science and Engineering, Shandong University of Technology, Zibo, 255000, China;3. Institute of Additive Manufacturing, Shandong University of Technology, Zibo, 255000, China;4. Shandong Industrial Ceramics Research & Design Institute Co., Ltd., Zibo, 255000, China;5. School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, China;1. Graduate Program in Aerospace Engineering, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, 50670-901, Recife, Brazil;2. Department of Mechanical Engineering, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, 50740-550, Recife, Brazil;3. Graduate Program in Materials Science, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, 50740-560, Recife, Brazil;4. Graduate Program in Chemistry, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, 50740-560, Recife, Brazil;5. Department of Fundamental Chemistry, Universidade Federal de Pernambuco, Av. Jorn. Aníbal Fernandes, 1235 - Cidade Universitária, 50740-560, Recife, Brazil;1. University of Science and Technology of China, Hefei, 230026, China;2. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China;3. University of Chinese Academy of Sciences, Beijing, 100049, China;4. University of North Texas, Denton, 76201, USA;1. Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, PR China;2. School of Mechanical and Aerospace Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, PR China;3. School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, PR China;1. Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Unità di Ricerca del Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Università degli Studi di Cagliari, 09123, Cagliari, Italy;2. Dipartimento di Scienze Chimiche, Fisiche, Matematiche e Naturali, Università degli Studi di Sassari, 07100, Sassari, Italy;3. Dipartimento di Fisica, Università degli Studi di Cagliari, 09042, Monserrato, Cagliari, Italy;4. Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States |
| |
| Abstract: | Transparent glass ceramic with Ba2NaNb5O15 as the main crystal phase was prepared, and the appropriate heat treatment condition was selected as 710 °C/150 min through various characterizations. The luminous intensity and thermal stability were enhanced significantly when the glass ceramic was used as the luminous matrix. After introducing Ti4+ ions as charge compensators, the luminescence performance and thermal stability were further improved, and the reasons for this were analyzed. At 458 K, the luminous intensity of 0.5%Eu3+ doped glass ceramic containing 0.5%Ti4+ can maintain about 65% of room temperature with a chromaticity shift of 5.16 × 10−2. The relative and absolute sensitivities of 0.7%Er3+ doped glass ceramic were 4.04 × 10−3 K−1 and 1.31% K−1. Introducing Ti4+ ions would weaken the population redistribution ability of 2H11/2 and 4S3/2 levels and reduce the temperature sensitivity. However, the sample containing Ti4+ shows good thermal stability, its green emission at 458 K has a small chromaticity shift of 6.45 × 10−3. The research shows that the glass ceramic can be used as a good luminescent host material, and Eu3+/Er3+ doped glass ceramic can be used in the fields of LEDs or temperature sensing. |
| |
| Keywords: | Glass ceramic LEDs Temperature sensing |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
