OPTICAL-ABSORPTION AND LUMINESCENCE SPECTRA OF RH-3+-DOPED CS2NAMCL6 (M = Y, IN, SC) SINGLE-CRYSTALS

被引：18
作者：
WEAVER, SC [1 ]
MCCLURE, DS [1 ]
机构：
[1] PRINCETON UNIV,DEPT CHEM,PRINCETON,NJ 08544
来源：
INORGANIC CHEMISTRY | 1992年 / 31卷 / 13期
关键词：
D O I：
10.1021/ic00039a028
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The optical absorption and emission properties of Rh3+ in Cs2NaMCl6 (M = Y, In, Sc) and of Ir3+ (M = In) were studied and compared to the more highly resolved spectra of the PtF62- ion. Single crystals were grown by the Bridgeman method and characterized by X-ray diffraction. The emission decay time is 22 ms for Rh3+ and 4.8 ms for Ir3+, but nonradiative quenching occurs above 150 K in the three host lattices. The observed temperature dependence gave values for the promoting mode and accepting modes in agreement with the broad spectral intervals observed and with analogous PtF62- modes. The energy gap between absorption and emission has been explained in terms of the promoting modes and the S-factors of the combining states. A crystal field calculation including spin-orbit coupling is used to fit the observed levels and show where unobserved ones must lie.
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页码：2814 / 2820
页数：7
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