Luminescence of ZnO nanocrystals in silica synthesized by dual (Zn, O) implantation and thermal annealing

被引:9
|
作者
Parkhomenko, I [1 ]
Vlasukova, L. [1 ]
Komarov, F. [2 ,3 ]
Makhavikou, M. [2 ]
Milchanin, O. [2 ]
Wendler, E. [4 ]
Zapf, M. [4 ]
Ronning, C. [4 ]
机构
[1] Belarusian State Univ, Minsk, BELARUS
[2] Belarusian State Univ, AN Sevchenko Res Inst Appl Phys Problems, Minsk, BELARUS
[3] Natl Univ Sci & Technol MISIS, Moscow, Russia
[4] Friedrich Schiller Univ Jena, Inst Solid State Phys, Jena, Germany
关键词
zinc blende ZnO; nanocrystals; photoluminescence; bound exciton; intrinsic defects; NATIVE POINT-DEFECTS; QUANTUM DOTS; PHOTOLUMINESCENCE; NANOPARTICLES; EVOLUTION; DYNAMICS; CENTERS; MATRIX; FILMS; SIO2;
D O I
10.1088/1361-6463/abf0ec
中图分类号
O59 [应用物理学];
学科分类号
摘要
Zinc blende ZnO nanocrystals (NCs) were synthesised in amorphous silica by high-fluence dual (Zn, O) ion implantation and subsequent thermal annealing in air. We observed the formation of core/shell nanoparticles at the depth of maximum Zn concentration as a result of an incomplete oxidation process. The silica matrix with ZnO NCs exhibits an intense white-greenish emission. Low-temperature photoluminescence spectroscopy revealed various radiative recombination mechanisms in the zinc blende ZnO NCs involving intrinsic defects that act as donors and acceptors.
引用
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页数:9
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