Luminescent properties of Pb2+- and Mn2+- activated CdI2 crystals

被引：2
作者：
Novosad, S. S. [1 ]
Novosad, I. S. [1 ]
Pashuk, I. P. [1 ]
Kostyk, L. V. [1 ]
机构：
[1] Franko Natl Univ, UA-79000 Lvov, Ukraine
来源：
INORGANIC MATERIALS | 2007年 / 43卷 / 08期
关键词：
D O I：
10.1134/S0020168507080110
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The luminescent properties of CdI2, CdI2 : Pb2+, CdI2 : Mn2+, and CdI2 :( Pb2+, Mn2+) crystals have been studied at temperatures from 85 to 295 K under optical and x-ray excitation. Analysis of new and earlier spectroscopic data suggests that the 560-nm luminescence of CdI2 : Pb2+ and CdI2 :( Pb2+, Mn2+) crystals under excitation on the long-wavelength component of the A absorption band of Pb2+ centers is due to Pb2+-bound anion excitons. The 640- to 660-nm emission of these crystals is attributable to a centers. The manganese luminescence in the codoped material originates from both intracenter Mn2+ excitations and a sensitized process due to energy transfer from the host and Pb2+-related centers. The mechanisms of recombination and energy transfer processes in cadmium iodide crystals codoped with Pb2+ and Mn2+ are discussed.
引用
收藏
页码：878 / 884
页数：7
相关论文
共 35 条
[21]  
LYSKOVICH AB, 1973, UKR FIZ ZH, V18, P1057
[22]  
LYSKOVICH OB, 1977, UKR FIZ ZH, V22, P1550
[23]  
NOVOSAD S, 2003, LUMDETR 5 EUR C LUM, P151
[24]  
NOVOSAD S.S., 1998, UKR FIZ ZH, V43, P338
[25]   Luminescence and photosensitivity of PbI2 crystals [J].
Novosad, SS ;
Novosad, IS ;
Matviishin, IM .
INORGANIC MATERIALS, 2002, 38 (10) :1058-1062
[26]  
Novosad SS, 1997, INORG MATER+, V33, P1183
[27]   Luminescent properties of activated CdI2 crystals [J].
Novosad, SS ;
Turchak, RM ;
Kushnir, OB ;
Pastyrskii, YA .
INORGANIC MATERIALS, 2001, 37 (08) :853-856
[28]  
NOVOSAD SS, 1999, FUNCT MAT, V6, P56
[29]  
NOVOSAD SS, 1999, 10 INT C JEN, P224
[30]  
NOVOSAD SS, 2004, FUNCT MAT, V11, P735
1234