Synthesis and magnetooptic characterization of Cu-doped ZnO/MgO and ZnO/oleic acid core/shell nanoparticles

被引：9
|
作者：
Mikulski, J. [1 ]
Sikora, B. [1 ]
Fronc, K. [1 ]
Aleshkevych, P. [1 ]
Kret, S. [1 ]
Suffczynski, J. [2 ]
Papierska, J. [2 ]
Klopotowski, L. [1 ]
Kossut, J. [1 ]
机构：
[1] Polish Acad Sci, Inst Phys, Al Lotnikow 32-46, PL-02668 Warsaw, Poland
[2] Univ Warsaw, Fac Phys, Dept Expt Phys, Ul Pasteura 5, PL-02093 Warsaw, Poland
来源：
RSC ADVANCES | 2016年 / 6卷 / 50期
关键词：
QUANTUM DOTS; OPTICAL-PROPERTIES; ZNO; PHOTOLUMINESCENCE; FERROMAGNETISM; NANOCRYSTALS; LUMINESCENCE; SPECTROSCOPY; MAGNETISM; NANORODS;
D O I：
10.1039/c6ra01453d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effect of Cu ion doping on the photoluminescence (PL) and magnetic behavior of ZnO/MgO and ZnO/oleic acid core/shell nanoparticles is investigated. By means of transmission electron microscopy we determine the average size distribution of the synthesized nanoparticles, while by studying electron paramagnetic resonance we determine the oxidation state of the Cu ions to be Cu2+. The magnetic field only slightly shifts spectrally the emission of the ensemble of such quantum dots. On the other hand, the magnetic field induces a considerable strengthening of the PL intensity and a sizable circular polarization of the emission of ZnO/MgO nanocrystals.
引用
收藏
页码：44820 / 44825
页数：6
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