Preparation and luminescent properties of highly transparent Y3Ga5O12:M3+ (M = Dy,Cr) ceramics |
| |
| Affiliation: | 1. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China;2. School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, China;3. Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315201, China;1. Departamento de Física Aplicada, ICMUV, Universitat de València, Dr. Moliner 50, 46100, Burjassot, Spain;2. European Synchrotron Radiation Facility, BP 220, 6 Rue Jules Horowitz, 38043, Grenoble, Cedex 9, France;3. DCITIMAC, Universidad de Cantabria, Avenida de Los Castros 48, 39005, Santander, Spain;4. Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL–02668, Warsaw, Poland;1. School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China;2. International Research Centre for Nano Handling and Manufacturing of China, Changchun University of Science and Technology, Changchun 130022, China;1. School of Mechanical and Electrical Engineering, Mianyang Teachers’ College, Mianyang, 621000, PR China;2. School of Mathematics and Physics, Mianyang Teachers’ College, Mianyang, 621000, PR China;1. School of Material Science and Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China;2. Key Laboratory of Transparent and Opto-Functional Advanced Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China;3. Institute of Electrophysics UrB of Russian Academy of Sciences, 106 Amundsena Street, Ekaterinburg 620016, Russia;4. Ural Federal University, 19 Mira Avenue, Ekaterinburg 620002, Russia;5. Department of Chemistry, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China |
| |
| Abstract: | YGG:Dy and YGG:Cr polycrystalline ceramics were prepared via a solid-state reaction-two step sintering approach. The crystalline structure, phase evolution, morphologies and luminescence properties of as prepared transparent ceramics were intensively investigated. In-line transmittance of YGG:Dy and YGG:Cr transparent ceramics can reach up to 70.6% and 67.3% at 1200 nm, respectively. For YGG:Dy transparent ceramic, three emission bands centered at 492 nm, 581 nm and 669 nm can be observed under excitation of 353 nm. Its CIE color coordinate is (0.3182, 0.3326) under UV irradiation, which is a promising UV-converting candidate for WLEDs. While the emission peak of YGG:Cr transparent ceramic is at about 709 nm, which can be one of the candidate materials applied in red-emitting LEDs with excellent color rendering index. The experimental results demonstrate that Y3Ga5O12:M3+ (M = Dy, Cr) transparent ceramics are promising novel luminescent materials for LEDs. |
| |
| Keywords: | YGG:Dy YGG:Cr Transparent ceramics UV-converting candidate Red-emitting LEDs |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
