课题组选用Al-N取代Si-N方法研究影响LSN:Ce光效衰减和发光饱和的机理,图24为La2.86Si5.9Al0.1N10.97:0.14Ce3+样品在蓝光不同能量激光辐照下光强变化情况,结果表明,掺杂Al3+后样品的发光饱和阈值为6W/mm2,远远低于前述未掺杂的LSN:Ce的9.5W/mm2发光饱和阈值。
The research group selected Al-N instead of Si-N to study the mechanism affecting the light effect attenuation and luminescence saturation of LSN: CE. Fig. 24 shows the change of light intensity of la2.86si5.9al0.1n10.97:0.14ce3 + sample irradiated by blue laser with different energy. The results show that the luminescence saturation threshold of the sample doped with Al3 + is 6W / mm2, which is far lower than the 9.5w/mm2 luminescence saturation threshold of the above undoped LSN: CE.