| Affiliation: | 1. College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts & Telecommunications, Nanjing, China;2. College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts & Telecommunications, Nanjing, China Nanjing Institute of Advanced Laser Technology, Chinese Academy of Sciences, Nanjing, China;3. Nanjing Institute of Advanced Laser Technology, Chinese Academy of Sciences, Nanjing, China |
| Abstract: | A kind of Dy-doped yttrium aluminum garnet (YAG) transparent ceramic for ultraviolet excited single-phase white light-emitting phosphor was investigated, which has high-quantum efficiency (45%). The temperature field of Dy:YAG transparent ceramic was calculated by steady-state thermal simulation. Moreover, by combining with 365 nm light-emitting diodes (LED) chip directly, the Commission Internationale de l’Éclairage coordinate (x = 0.33, y = 0.35) is close to the standard equal energy white light illumination. The Dy:YAG transparent ceramic, possessing of good optical and thermal properties, is promising for applications in high-power LEDs devices. |
