Comparison of Lu3Al5O12:Ce(Er) Bulk and Nono Single Crystals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F25%3A00639587" target="_blank" >RIV/61389005:_____/25:00639587 - isvavai.cz</a>

Result on the web

<a href="https://www.confer.cz/nanocon/2024/4979-optical-properties-of-lu3al5o12-ce-er-nanocrystals" target="_blank" >https://www.confer.cz/nanocon/2024/4979-optical-properties-of-lu3al5o12-ce-er-nanocrystals</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2024.4979" target="_blank" >10.37904/nanocon.2024.4979</a>

Result language

angličtina

Original language name

Comparison of Lu3Al5O12:Ce(Er) Bulk and Nono Single Crystals

Original language description

Lutetium aluminum garnet (LuAG) is a crystal well known for being extraordinarily useful for building highly efficient laser devices or ionizing radiation detectors. To design the most favourable physical properties, different dopants and synthesis methods are constantly developed, primarily focused on the advantages of single crystals. However, the downscaling of the luminescent materials to nanosize also creates additional benefits of increased surface to volume ratio and thus, the efficiency of luminescence or doping can be improved. Therefore, the aim of this work is to compare the single crystals and nanogarnets under the influence of Ce and Er doping. Optical properties of the garnet single crystals are very well known while the nanocrystals should have been studied first. Synergy methods like X-ray diffraction (XRD), photoluminescence (PL), photothermal deflection spectroscopies (PDS) were applied to the LuAG:Ce(Er) nanocrystals whereas the electron paramagnetic resonance (EPR) measurements were carried out in both single and nanocrystals. The main conclusion is that cerium enters nanocrystalline lattice becoming Ce4+ compensated by the Cr2+, Fe2+ ions (accidental impurities) whereas it is also Ce3+ in the single crystal. About one order of magnitude larger Er3+ content was observed in the case of nanocrystals as compared to single crystals.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Article name in the collection

NANOCON Conference Proceedings

ISBN

978-80-88365-24-2

ISSN

2694-930X

e-ISSN

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Number of pages

8

Pages from-to

33-40

Publisher name

TANGER Ltd.

Place of publication

Brno

Event location

Brno

Event date

Oct 16, 2024

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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