Luminescence and excited state dynamics of Bi3+ centers in Y2O3.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00451486" target="_blank" >RIV/68378271:_____/15:00451486 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jlumin.2015.06.029" target="_blank" >http://dx.doi.org/10.1016/j.jlumin.2015.06.029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jlumin.2015.06.029" target="_blank" >10.1016/j.jlumin.2015.06.029</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Luminescence and excited state dynamics of Bi3+ centers in Y2O3.

Popis výsledku v původním jazyce

Photoluminescence of Y2O3:Bi nanopowder is studied using time-resolved luminescence spectroscopy. Bi3+ ions are substituted for Y3+ ions in two different crystal lattice sites. The luminescence characteristics of these two centers are found to have strongly different electron-phonon interactions. The luminescence of Bi(S6) and Bi(C2) centers peak at 3.04 eV and 2.41 eV, respectively, and arise from the radiative decay of the triplet relaxed excited state (RES) of Bi3+ ions. The model and structure of the RES, responsible for the luminescence of these centers in Y2O3:Bi, as well as radiative and nonradiative processes, taking place in the excited states of these centers, are investigated. The parameters of the triplet RES are determined. Low-temperaturequenching of the triplet luminescence of these centers is explained.

Název v anglickém jazyce

Luminescence and excited state dynamics of Bi3+ centers in Y2O3.

Popis výsledku anglicky

Photoluminescence of Y2O3:Bi nanopowder is studied using time-resolved luminescence spectroscopy. Bi3+ ions are substituted for Y3+ ions in two different crystal lattice sites. The luminescence characteristics of these two centers are found to have strongly different electron-phonon interactions. The luminescence of Bi(S6) and Bi(C2) centers peak at 3.04 eV and 2.41 eV, respectively, and arise from the radiative decay of the triplet relaxed excited state (RES) of Bi3+ ions. The model and structure of the RES, responsible for the luminescence of these centers in Y2O3:Bi, as well as radiative and nonradiative processes, taking place in the excited states of these centers, are investigated. The parameters of the triplet RES are determined. Low-temperaturequenching of the triplet luminescence of these centers is explained.

Druh

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

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

—

Projekt

—

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 Luminescence

ISSN

0022-2313

e-ISSN

—

Svazek periodika

167

Číslo periodika v rámci svazku

Nov

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

268-277

Kód UT WoS článku

000361401600039

EID výsledku v databázi Scopus

2-s2.0-84937216634