Spectral luminescent properties of alkaline earth fluoride crystals implanted with silver ions

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Resumo

Spectral and kinetic characteristics of photoluminescence of BaF2 and SrF2 crystals implanted with high-energy (~ 100 keV) Ag ions have been studied. The photoluminescence spectra of both crystals have a similar structure, three components are observed with maxima in the wavelength ranges 500—550, 600—670 and 760—770 nm. Positions of the maxima depend on the matrix material and excitation wavelength. Study of the kinetic curves of luminescence decay allowed to distinguish three components with characteristic decay times of ≤ 1ns, about 4 ns and 13—15 ns.

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Sobre autores

V. Paperny

Irkutsk State University

Autor responsável pela correspondência
Email: paperny@math.isu.runnet.ru
Rússia, Irkutsk

A. Chernykh

Irkutsk State University

Email: paperny@math.isu.runnet.ru
Rússia, Irkutsk

A. Ischenko

Irkutsk Branch of Institute of Laser Physics, Siberian Branch of the Russian Academy of Sciences

Email: paperny@math.isu.runnet.ru
Rússia, Irkutsk

S. Murzin

Irkutsk Branch of Institute of Laser Physics, Siberian Branch of the Russian Academy of Sciences

Email: paperny@math.isu.runnet.ru
Rússia, Irkutsk

A. Myasnikova

A.P. Vinogradov Institute of Geochemistry of the Siberian Branch of the Russian Academy of Sciences

Email: paperny@math.isu.runnet.ru
Rússia, Irkutsk

R. Shendrik

A.P. Vinogradov Institute of Geochemistry of the Siberian Branch of the Russian Academy of Sciences

Email: paperny@math.isu.runnet.ru
Rússia, Irkutsk

Е. Martynovich

Irkutsk State University; Irkutsk Branch of Institute of Laser Physics, Siberian Branch of the Russian Academy of Sciences

Email: paperny@math.isu.runnet.ru
Rússia, Irkutsk; Irkutsk

V. Dresvyanskiy

Irkutsk State University; Irkutsk Branch of Institute of Laser Physics, Siberian Branch of the Russian Academy of Sciences

Email: paperny@math.isu.runnet.ru
Rússia, Irkutsk; Irkutsk

Bibliografia

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2. Fig. 1. Luminescence spectrum of BaF2 crystal upon excitation by radiation with wavelength of 405 nm (a) and 375 nm (b). Experimental contour is blue curve (1), Gaussian contours of model components are black curves (2, 3, 4), total model contour is red dots (5).

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3. Fig. 2. Luminescence spectrum of the SrF2 crystal upon excitation by radiation with a wavelength of 405 nm (a) and 375 nm (b). The experimental contour is the blue curve (1), the Gaussian contours of the model components are the black curves (2, 3, 4), and the total model contour is the red dots (5).

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4. Fig. 3. Kinetics of luminescence of silver clusters in the SrF2 crystal; the symbol Lifet. denotes the value of the component decay time (ns), the symbol Ampl. denotes the amplitude (relative units) of these components; Backgr. — background.

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