State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2014 Jan 3;117:402-5. doi: 10.1016/j.saa.2013.08.025. Epub 2013 Aug 14.
Red-emitting SrMgAlxO17±δ:yMn(4+) composite phosphors (x=10-100; y=0.05-4.0 mol%) are synthesized by solid-state reaction method in air. Addition of Al2O3 leads to the formation of two concomitant phases, i.e., SrMgAl10O17 and Al2O3 phases in the composite phosphor. Red emission from Mn(4+) ions in the composite phosphors is greatly enhanced due to multiple scattering and absorption of excitation light between SrMgAl10O17 and Al2O3 phases. SrMgAlxO17±δ:yMn(4+) composite phosphors would be a promising candidate as red phosphor in the application of a 397 nm near UV-based W-LED.
红色发射 SrMgAlxO17±δ:yMn(4+) 复合荧光粉（x=10-100；y=0.05-4.0mol%）通过固态反应法在空气中合成。Al2O3 的添加导致复合荧光粉中形成两个伴随相，即 SrMgAl10O17 和 Al2O3 相。由于 SrMgAl10O17 和 Al2O3 相之间激发光的多次散射和吸收，Mn(4+)离子在复合荧光粉中的红色发射得到大大增强。SrMgAlxO17±δ:yMn(4+) 复合荧光粉有望成为应用于基于 397nm 近紫外的 W-LED 的红色荧光粉。
