Effect of oxidation annealing on optical properties of YAG:Ce single crystals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F15%3A00445409" target="_blank" >RIV/68081731:_____/15:00445409 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.optmat.2015.05.035" target="_blank" >http://dx.doi.org/10.1016/j.optmat.2015.05.035</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2015.05.035" target="_blank" >10.1016/j.optmat.2015.05.035</a>

Result language

angličtina

Original language name

Effect of oxidation annealing on optical properties of YAG:Ce single crystals

Original language description

YAG:Ce single crystals were annealed in air atmosphere at different temperatures. Their optical properties, such as optical absorption, cathodoluminescence spectra, cathodoluminescence decay and thermoluminescence were studied. Growth of UV absorption with increasing annealing temperature is explained by ionization of Ce3+ ions during the oxidation annealing and consequent ligand-to-metal charge transfer to the Ce4+ ions. Near-UV luminescence emission caused by presence of the antisite defects is undesirable for fast scintillation applications. After oxidation annealing, the emission related to the antisite defects is partially quenched due to the spectral overlap of the charge transfer absorption and the antisite defects emission. Together with suppression of electron traps due to the oxidation annealing, the described mechanism effectively decreases luminescence afterglow and improves YAG:Ce scintillation characteristics.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Optical Materials

ISSN

0925-3467

e-ISSN

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Volume of the periodical

46

Issue of the periodical within the volume

AUG 2015

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

5

Pages from-to

591-595

UT code for WoS article

000357350700095

EID of the result in the Scopus database

2-s2.0-84930824636