Effects of Gd/Lu ratio on the luminescence properties and garnet phase stability of Ce3+ activated GdxLu3-xAl5O12 single crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00499455" target="_blank" >RIV/68378271:_____/18:00499455 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.optmat.2018.04.023" target="_blank" >http://dx.doi.org/10.1016/j.optmat.2018.04.023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2018.04.023" target="_blank" >10.1016/j.optmat.2018.04.023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of Gd/Lu ratio on the luminescence properties and garnet phase stability of Ce3+ activated GdxLu3-xAl5O12 single crystals

Popis výsledku v původním jazyce

The luminescence properties of Ce3+ doped (Gd,Lu)3Al5O12 single crystals are investigated as a function of the Gd/Lu ratio with the aim of an improved understanding of the luminescence quenching, energy transfer processes and garnet phase stability. Upon heavy substitution of Lu with Gd, the target garnet phase becomes thermodynamically unstable and unwanted secondary phase inclusions arise. The thermal quenching process of the 5d→4f emission of Ce3+ in the garnet phase is determined by the temperature dependence of the photoluminescence decay time and delayed radiative recombination decays. The results show that the onset of the thermal quenching is moved to lower temperatures with increasing the Gd3+ content. The main mechanism responsible for the luminescence quenching is due to the non-radiative relaxation from 5d1 excited state to 4f ground state of Ce3+.

Název v anglickém jazyce

Effects of Gd/Lu ratio on the luminescence properties and garnet phase stability of Ce3+ activated GdxLu3-xAl5O12 single crystals

Popis výsledku anglicky

The luminescence properties of Ce3+ doped (Gd,Lu)3Al5O12 single crystals are investigated as a function of the Gd/Lu ratio with the aim of an improved understanding of the luminescence quenching, energy transfer processes and garnet phase stability. Upon heavy substitution of Lu with Gd, the target garnet phase becomes thermodynamically unstable and unwanted secondary phase inclusions arise. The thermal quenching process of the 5d→4f emission of Ce3+ in the garnet phase is determined by the temperature dependence of the photoluminescence decay time and delayed radiative recombination decays. The results show that the onset of the thermal quenching is moved to lower temperatures with increasing the Gd3+ content. The main mechanism responsible for the luminescence quenching is due to the non-radiative relaxation from 5d1 excited state to 4f ground state of Ce3+.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GA16-15569S" target="_blank" >GA16-15569S: Rychlé tenkovrstvé scintilátory pro 2D-zobrazování s vysokým rozlišením</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Optical Materials

ISSN

0925-3467

e-ISSN

—

Svazek periodika

80

Číslo periodika v rámci svazku

Jun

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

98-105

Kód UT WoS článku

000435053600014

EID výsledku v databázi Scopus

2-s2.0-85046137859