Luminescence and radiative decay of Er3+ in Cs2NaErCl6
Luminescence and radiative decay of Er3+ in Cs2NaErCl6
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DOI：
10.1080/00268978800100271
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发表时间：
1988-02
影响因子：
1.7
通讯作者：
P. Tanner
中科院分区：
文献类型：
--
作者：
P. Tanner
Cs2NaErCl6和Cs2NaGdCl6: ErCl3- 6的488 nm和514 nm氩离子激发发光光谱在10 ~ 295 K范围内分别为26 030 ~ 3640 cm-1和4 I 11/2→4 I 15/ 2,4 I 13/2；4 I 9/2→4 I 15/2；4f 9/2→4i 15/2, 4i 11/2；4 s 3/2→4 I 15/ 2,4 I 13/ 2,4 I 11/ 2,4 I 9/2；2 h 11/2→4 I 15/2, 4 I 13/2；4f 7/2→4i 13/2；2g 9/2→4i 15/2, 4i 11/2, 4f 9/2；4个G / 11/2→4个I / 15/2转换被分配并详细解释。计算了Cs2NaErCl6中Er3+的6个最低激发项的磁偶极子自发发射概率，其中一些值在10-295 K之间变化高达5倍。通过对发射光谱的积分，得到了4 S 3/2及更低项的多重-多重跃迁的总辐射衰减率，由于其值与测量的衰减率非常相似，因此立方角闪石中Er3+的这些项的多声子弛豫率非常慢。
The 488 nm- and 514 nm-argon-ion excited luminescence spectra of Cs2NaErCl6 and Cs2NaGdCl6 : ErCl3- 6 have been recorded between 10-295 K in the spectral range 26 030-3640 cm-1 and the 4 I 11/2 → 4 I 15/2, 4 I 13/2; 4 I 9/2 → 4 I 15/2; 4 F 9/2 → 4 I 15/2, 4 I 11/2; 4 S 3/2 → 4 I 15/2, 4 I 13/2, 4 I 11/2, 4 I 9/2; 2 H 11/2 → 4 I 15/2, 4 I 13/2; 4 F 7/2 → 4 I 13/2; 2 G 9/2 → 4 I 15/2, 4 I 11/2, 4 F 9/2; and 4 G 11/2 → 4 I 15/2 transitions are assigned and interpreted in detail. Magnetic-dipole sponaneous emission probabilities have been calculated for the six lowest excited terms of Er3+ in Cs2NaErCl6 and some values vary by a factor of up to five between 10-295 K. Total radiative decay rates for multiplet-multiplet transitions have been obtained for 4 S 3/2 and lower terms, by integration of the emission spectra, and since the values are very similar to the measured decay rates the multiphonon relaxation rates are very slow for these terms of Er3+ in cubic elpasolite hosts.