Thermal Tb emission quenching in YAlO3 matrix embedded in porous anodic alumina |
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| Affiliation: | 1. Institute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland;2. Belarusian State University of Informatics and Radioelectronics, P. Browki Str. 6, 220013 Minsk, Belarus;1. Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, Shanxi, PR China;2. Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, PR China;3. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, PR China;4. College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, PR China;1. Instituto de Fisica, Universidade Federal de Uberlandia, CEP38408-902 Uberlandia, Minas Gerais, Brazil;2. CIMAP – Centre de recherche sur les Ions, les Matériaux et la Photonique UMR 6252 CEA-CNRS-ENSICAEN-Université de Caen, 14050 CAEN Cedex 4, France;3. Instituto de Física de São Carlos, Universidade de São Paulo, USP, CEP 13560-970 São Carlos, SP, Brazil;1. Nankai University School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, PR China;2. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China;1. School of Materials Science and Engineering, Shanghai University, No. 99 Shangda Road, Baoshan District, Shanghai 200444, China;2. Instrumental Analysis and Research Center, Shanghai University, China |
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| Abstract: | Terbium doped YAlO3 composites were fabricated by the co-precipitation method in a porous anodic alumina (PAA) films grown on silicon at three different Tb concentrations: 0.23, 0.87 and 2.11 at.%. To investigate the emission thermal quenching for all samples, we measured the emission spectra as a function of temperature in the range from 10 up to 500 K at 266 and 488 nm excitation wavelengths. Based on obtained results we proposed the physical model explaining the mechanism of Tb3+ emission quenching in YAlO3 composites deposited into PAA film. |
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| Keywords: | PAA Terbium Lanthanides Quenching Light-sources |
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