Luminescence properties of nanocrystalline europium titanate Eu2Ti2O7

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00449013" target="_blank" >RIV/68081723:_____/15:00449013 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388980:_____/15:00449013 RIV/67985882:_____/15:00449013

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jallcom.2015.05.019" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2015.05.019</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2015.05.019" target="_blank" >10.1016/j.jallcom.2015.05.019</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Luminescence properties of nanocrystalline europium titanate Eu2Ti2O7

Popis výsledku v původním jazyce

Nanocrystalline europium titanate Eu2Ti2O7 with tailored structural properties was prepared by a sol-gel approach. Structural properties of prepared nanocrystals were correlated to the steady-state and time-resolved luminescence spectroscopy of europiumions incorporated within formed nanocrystals. The formation of nanocrystalline Eu2Ti2O7 raised up the existence of two inequivalent positions of Eu3+ ions. Eu3+ ions displaced in highly symmetrical positions within the pyrochlore lattice provided low intensity luminescence and lifetime shorter than 10 mu s. Eu3+ ions displaced in asymmetrical positions on the surface of formed nanoparticles provided lifetimes on the level of 50 mu s. Number of Eu3+ ions displaced in asymmetrical positions was decreasedaccording to increase size and crystallinity of formed nanocrystals. The presented results provide fundamental information about the influence of the structure and the morphology of formed nanocrystals to their luminescence properties

Název v anglickém jazyce

Luminescence properties of nanocrystalline europium titanate Eu2Ti2O7

Popis výsledku anglicky

Nanocrystalline europium titanate Eu2Ti2O7 with tailored structural properties was prepared by a sol-gel approach. Structural properties of prepared nanocrystals were correlated to the steady-state and time-resolved luminescence spectroscopy of europiumions incorporated within formed nanocrystals. The formation of nanocrystalline Eu2Ti2O7 raised up the existence of two inequivalent positions of Eu3+ ions. Eu3+ ions displaced in highly symmetrical positions within the pyrochlore lattice provided low intensity luminescence and lifetime shorter than 10 mu s. Eu3+ ions displaced in asymmetrical positions on the surface of formed nanoparticles provided lifetimes on the level of 50 mu s. Number of Eu3+ ions displaced in asymmetrical positions was decreasedaccording to increase size and crystallinity of formed nanocrystals. The presented results provide fundamental information about the influence of the structure and the morphology of formed nanocrystals to their luminescence properties

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

<a href="/cs/project/GP13-37368P" target="_blank" >GP13-37368P: Nové thuliem dopované nanomateriály pro aktivní optická vlákna</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Svazek periodika

645

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

7

Strana od-do

57-63

Kód UT WoS článku

000357146300011

EID výsledku v databázi Scopus

2-s2.0-84929207555