Investigation of electrical and optical properties of Ge-Ga-As-S glasses doped with rare-earth ions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F13%3A00396801" target="_blank" >RIV/67985882:_____/13:00396801 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985891:_____/13:00396801

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2013.02.009" target="_blank" >http://dx.doi.org/10.1016/j.jnoncrysol.2013.02.009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2013.02.009" target="_blank" >10.1016/j.jnoncrysol.2013.02.009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of electrical and optical properties of Ge-Ga-As-S glasses doped with rare-earth ions

Popis výsledku v původním jazyce

Bulk glasses Ge250Ga17As83S650 were prepared by direct synthesis from high purity (6 N) elements S, Ga, Ge, As and doped by rare earth (RE) elements - Pr, Dy, Nd, Sm or Ho. The DC and AC electrical conductivity were measured, and activation energies of relevant conductivity process were obtained from Arrhenius plots of its temperature dependence. The real part of complex permittivity as a function of temperature and frequency was deduced from AC conductivity data. Room temperature optical transmission and low temperature photoluminescence (PL) spectra were further investigated. The major feature in low-temperature PL spectra is the presence of the broad band luminescence of the base glass and relatively sharp 4f-4f radiative transitions due to the presence of RE3+ ions. When the broad band luminescence spectrally overlaps with 4f-4f transitions of RE 3+ ions we can, in some cases, also observe the direct evidence of the energy transfer between the host glass and respective RE dopants w

Název v anglickém jazyce

Investigation of electrical and optical properties of Ge-Ga-As-S glasses doped with rare-earth ions

Popis výsledku anglicky

Bulk glasses Ge250Ga17As83S650 were prepared by direct synthesis from high purity (6 N) elements S, Ga, Ge, As and doped by rare earth (RE) elements - Pr, Dy, Nd, Sm or Ho. The DC and AC electrical conductivity were measured, and activation energies of relevant conductivity process were obtained from Arrhenius plots of its temperature dependence. The real part of complex permittivity as a function of temperature and frequency was deduced from AC conductivity data. Room temperature optical transmission and low temperature photoluminescence (PL) spectra were further investigated. The major feature in low-temperature PL spectra is the presence of the broad band luminescence of the base glass and relatively sharp 4f-4f radiative transitions due to the presence of RE3+ ions. When the broad band luminescence spectrally overlaps with 4f-4f transitions of RE 3+ ions we can, in some cases, also observe the direct evidence of the energy transfer between the host glass and respective RE dopants w

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Non-Crystalline Solids

ISSN

0022-3093

e-ISSN

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Svazek periodika

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Číslo periodika v rámci svazku

377

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

85-89

Kód UT WoS článku

000325304800020

EID výsledku v databázi Scopus

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