ELECTRON PARAMAGNETIC RESONANCE OF Mn2+ IONS IN NANOSIZED ZINC SULFIDE WITH A PLANAR LATTICE FAULT

被引：1
|
作者：
Vorona, I. P. [1 ]
Ishchenko, S. S. [1 ]
Grachev, V. G. [2 ]
Baran, N. P. [1 ]
Okulov, S. M. [1 ]
Nosenko, V. V. [1 ]
Selishchev, A. V. [3 ]
机构：
[1] Natl Acad Sci Ukraine, V Lashkaryov Inst Semicond Phys, 45 Nauky Ave, UA-03028 Kiev, Ukraine
[2] Montana State Univ, Bozeman, MT 59717 USA
[3] Tech Univ Chemnitz, D-09111 Chemnitz, Germany
来源：
JOURNAL OF APPLIED SPECTROSCOPY | 2019年 / 86卷 / 01期
关键词：
EPR; ZnS; lattice structure; planar lattice stacking fault; CRYSTAL-STRUCTURE; NANOPARTICLES; NANOCRYSTALS; EPR; LUMINESCENCE;
D O I：
10.1007/s10812-019-00792-7
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
We have studied the EPR of Mn2+ ions in three samples of cubic nano-ZnS made by different technologies and having different nanoparticle sizes. Manganese occurs in the samples as an uncontrolled impurity. The EPR spectra can be described by two components: the spectrum of the Mn2+ in a cubic environment (Mn2+(C)) with parameters g = 2.0022 +/- 0.0002, A = (-63.5 +/- 0.5).10(-4) cm(-1), b(4)(0) >= 3.5.10(-4) cm(-1); and the spectrum of the Mn2+ ion associated with a planar lattice stacking fault (Mn2+ (F)), with parameters g = 2.0022 +/- 0.0002, A = (-63.5 +/- 0.5).10(-4) cm(-1), b(2)(0) = (-36 +/- 1).10(-4) cm(-1). The ratio of the number of centers Mn2+(C)/Mn2+(F) is 2.1:1 for sample 1 and 1.7:1 for samples 2 and 3. Planar stacking faults are typical lattice faults for cubic nano-ZnS. EPR of the Mn2+ ions lets us monitor the presence of these ions.
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页码：130 / 133
页数：4
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