| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Solid-state Optical Materials and Luminescence Properties
|
| Presentation Title |
Development of Novel Garnet-based Transparent Ceramics for the High Power White Lighting |
| Author(s) |
Jianqiang Li, Shaowei Feng , Mathieu Allix, Yongchang Guo , Haiming Qin |
| On-Site Speaker (Planned) |
Jianqiang Li |
| Abstract Scope |
Garnet-based transparent ceramics is regarded as a promising color converter for the high-power white lighting owing to its remarkably physical and chemical properties. Y3Al5O12:Ce3+ (YAG:Ce3+) transparent ceramic as a class of highly efficient luminescent materials were proposed. Double substitution of [Mg2+]-(Si4+) for [Al3+]-(Al3+) was studied in YAG:Ce for Y3MgAl3SiO12 (YMASG) transparent ceramics, which leads to increasing the lattice constant and redshift of emission band. Thermal stability can be significantly improved by the incorporation of Lu3+ in YMASG transparent ceramic. Lu3MgxAl5-2xSixO12:Ce (LuMASG:Ce) transparent ceramics were successfully prepared for the first time via solid-state reaction sintering. All of the prepared ceramics show high transmittance, and the photoluminescence (PL) peak shifts from 535 nm to 578 nm with x increasing from 0.25 to 2. ReMASG transparent ceramics can offer scientists a new matrix to explore its applications. |