Luminescence of PbI2 nanoinclusions in CdI2 crystal lattice

被引：2
|
作者：
Bolesta, I. M. [1 ]
Vistovskyy, V. V. [1 ]
Gloskovska, N. V. [2 ]
Rovetskij, I. M. [1 ]
机构：
[1] Ivan Franko Lviv Natl Univ, 1 Univ Str, UA-79000 Lvov, Ukraine
[2] Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, 14b Metrolohichna Str, UA-03680 Kiev, Ukraine
来源：
FUNCTIONAL MATERIALS | 2016年 / 23卷 / 03期
关键词：
layered crystals; nanoinclusions; luminescence; synchotron excitation;
D O I：
10.15407/fm23.03.382
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Luminescence spectra of CdI2 crystals with Pb-2 inclusions (10(-5%)) under synchrotron excitation at 8 K are examined in the present work. The spectra of the crystals grown from the melt exhibit luminescence peaks at 2.13 and 2.43 eV which are associated with one-dimensional impurity nanoinclusions near dislocations. In the luminescence spectra of CdI2 crystals synthesized by the method of diffusion from the gas phase the effect of two-dimensional Pb-2 nanoinclusions with 2.0 and 2.48 eV bands prevails. A new model of the luminescence center is proposed.
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页码：382 / 386
页数：5
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