Relationships between lithium and sodium nanoparticles and color centers formation in LiF and NaF crystals with hydroxide and magnesium ions impurities

被引：8

作者：

Bryukvina, Lyubov ^{[1
]}

Ivanov, Nikolay ^{[2
]}

Nebogin, Sergey ^{[2
]}

机构：

[1] RAS, Irkutsk Div, Inst Laser Phys, Siberian Branch, 130a Lermontov St, Irkutsk 664033, Russia

[2] INRTU, 83 Lermontov St, Irkutsk 664074, Russia

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2018年 / 120卷

关键词：

Color center; OH-; Radiolysis; Irradiated LiF and NaF crystals; Metal nanoparticle; F-AGGREGATE CENTERS; ALKALI-HALIDE CRYSTALS; METAL COLLOIDS; ELECTROLYTIC COLORATION; OPTICAL-ABSORPTION; CENTER CREATION; RADIOLYSIS; DEFECTS; PRECIPITATION; SPECTROSCOPY;

D O I：

10.1016/j.jpcs.2018.04.001

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, we investigated the mutual influence of metal nanoparticles and the color centers in lithium and sodium fluorides based on absorption spectroscopy, infrared spectroscopy, atomic force microscopy, and photoluminescence method. Atomic force images of the fresh cleavage of the gamma-irradiated and photo-bleached single crystal of sodium fluoride indicated the photo-induced aggregation of F color centers followed by the formation and integration of sodium nanoparticles. The thermo-induced changes in the photo-bleached samples exhibited the inverse trend, i.e., disintegration of the nanoparticles and restoration of a crystal lattice. In the photo-bleached gamma-irradiated lithium fluoride crystals, we detected the luminescence of F-3 centers and confirmed that the mechanism of nanoparticle formation was due to aggregation of the color centers.

引用

页码：133 / 139

页数：7

共 3 条

[1] Photoluminescence of magnesium-associated color centers in LiF crystals implanted with magnesium ions
Nebogin, S. A.
Ivanov, N. A.
Bryukvina, L. I.
Shipitsin, N. V.
Rzhechitskii, A. E.
Papernyi, V. L.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS, 2018, 29 : 36 - 41
[2] Formation and properties of metallic nanoparticles in lithium and sodium fluorides with radiation-induced color centers
Bryukvina, L. I.
Martynovich, E. F.
PHYSICS OF THE SOLID STATE, 2012, 54 (12) : 2374 - 2379
[3] Formation and properties of metallic nanoparticles in lithium and sodium fluorides with radiation-induced color centers
L. I. Bryukvina
E. F. Martynovich
Physics of the Solid State, 2012, 54 : 2374 - 2379

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