SrAl_(12)O_(19)∶Pr^(3+)中的热激发  

Thermal excitations in SrAl_(12) O_(19) ∶Pr^(3+)

作　　者：吕少哲[1] 陈宝玖[1] 黄世华[1] 王笑军 陆丽珠 严懋勋 

机构地区：[1]中国科学院激发态物理重点实验室,长春130021 [2]DepartmentofPhysics,GeorgiaSouthernUniversity [3]DepartmentofPhysicsandAstronomy,UniversityofGeorgia

出　　处：《物理学报》2003年第4期1009-1012,共4页Acta Physica Sinica

基　　金：国家重点基础研究发展规划项目 (批准号 :G19980 613 0 9) ;国家自然科学基金 (批准号 :5 0 10 2 0 0 6和 10 2 740 83 )资助的课题~~

摘　　要：研究了SrAl1 2 O1 9∶Pr3+ 的光谱中3P1 和1 I6 的发射 .用3P1 →3H5与3P0 →3H5发射强度之比测量了温度 ,通过1 I6 →1 G4 与3P0 →1 G4 发射强度之比 ,讨论了热激发对3P0 可见光发射效率的影响 .In this paper, we have studied the emission spectra from the thermally excited 3P 1 and 1I 6 states in SrAl 12 O 19 ∶Pr 3+ .The ratio of the emission intensities of 3P 1→ 3H 5 and 3P 0→ 3H 5 transitions is applied to measure temperature. It is also pointed out that the thermally excited 1I 6 emission plays an important role in decreasing the quantum efficiency of the 3P 0 visible emission.

关 键 词：热激发 温度传感器 三价镨离子 PR^3+ SrAl12O19 铝酸锶 发射效率 可见光 发光强度 能级 

分 类 号：O482.31[理学—固体物理] TP212.11[理学—物理]