Specific absorption in Y3Al5O12:Eu ceramics and the role of stable Eu2+ in energy transfer processes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00538671" target="_blank" >RIV/68378271:_____/20:00538671 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/20:00347544

Výsledek na webu

<a href="https://doi.org/10.1039/d0tc01957g" target="_blank" >https://doi.org/10.1039/d0tc01957g</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d0tc01957g" target="_blank" >10.1039/d0tc01957g</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Specific absorption in Y3Al5O12:Eu ceramics and the role of stable Eu2+ in energy transfer processes

Popis výsledku v původním jazyce

Several sets of Eu-doped Y3Al5O12 (YAG) ceramic samples were synthesized by the vacuum sintering technique. Their structural, optical and magnetic properties were investigated by means of X-ray diffraction, X-ray fluorescence, optical absorption, time-resolved luminescence spectroscopy and electron paramagnetic resonance. Multiple annealing in different atmospheres was employed to understand the nature of strong specific absorption bands peaking at about 250, 370 and 550 nm in the case of these ceramics. The influence of sintering aids used during the preparation of ceramics (such as tetraethyl orthosilicate and/or magnesium oxide) on the optical properties is thoroughly studied. The charge transfer transition in the EuY+ + F+ pair center is suggested to explain the nature of these absorption bands which is also supported by the peculiarities of the Eu2+ 5d–4f and F+/F luminescence occurrence.

Název v anglickém jazyce

Specific absorption in Y3Al5O12:Eu ceramics and the role of stable Eu2+ in energy transfer processes

Popis výsledku anglicky

Several sets of Eu-doped Y3Al5O12 (YAG) ceramic samples were synthesized by the vacuum sintering technique. Their structural, optical and magnetic properties were investigated by means of X-ray diffraction, X-ray fluorescence, optical absorption, time-resolved luminescence spectroscopy and electron paramagnetic resonance. Multiple annealing in different atmospheres was employed to understand the nature of strong specific absorption bands peaking at about 250, 370 and 550 nm in the case of these ceramics. The influence of sintering aids used during the preparation of ceramics (such as tetraethyl orthosilicate and/or magnesium oxide) on the optical properties is thoroughly studied. The charge transfer transition in the EuY+ + F+ pair center is suggested to explain the nature of these absorption bands which is also supported by the peculiarities of the Eu2+ 5d–4f and F+/F luminescence occurrence.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Chemistry C

ISSN

2050-7526

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

26

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

8823-8839

Kód UT WoS článku

000548739700008

EID výsledku v databázi Scopus

2-s2.0-85088044734