Luminescent Properties of As-Grown and Vacuum Annealed LiNbO3 Single Crystals

Dmytro Yu. Sugak; Andriy P. Luchechko

doi:10.4028/www.scientific.net/SSP.200.199

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HomeSolid State PhenomenaSolid State Phenomena Vol. 200Luminescent Properties of As-Grown and Vacuum...

Luminescent Properties of As-Grown and Vacuum Annealed LiNbO₃ Single Crystals

Abstract:

This paper reports on the luminescent properties of the congruent as-grown and vacuum annealed LiNbO₃ single crystals at the UV and X-ray excitations. The shape of excitation spectra is similar for all emission bands in as-grown sample as well as in vacuum annealed sample. The emission spectra (exc=235 nm) observed in the spectral region 250…800 nm at room temperature consist of five elementary bands. Correlation of the relative intensities bands in luminescence spectra under different types of excitation and their temperature dependencies were determined. The most intensitive maxima in as-grown sample are observed at 295 and 691 nm. The main maximum after vacuum annealing is peaked around 295 nm.

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Periodical:

Solid State Phenomena (Volume 200)

Pages:

199-202

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.200.199

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Online since:

April 2013

Authors:

Dmytro Yu. Sugak, Andriy P. Luchechko

Keywords:

Lithium Niobate, Photoluminescence (PL), Vacuum Annealing, X-Ray Luminescence

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