Luminescence and scintillation properties of strontium hafnate and strontium zirconate single crystals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00339522" target="_blank" >RIV/68407700:21340/19:00339522 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/19:00520330 RIV/60461373:22310/19:43918087

Result on the web

<a href="https://doi.org/10.1016/j.optmat.2019.109494" target="_blank" >https://doi.org/10.1016/j.optmat.2019.109494</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2019.109494" target="_blank" >10.1016/j.optmat.2019.109494</a>

Result language

angličtina

Original language name

Luminescence and scintillation properties of strontium hafnate and strontium zirconate single crystals

Original language description

The transparent single crystals of high-melting strontium hafnate (SHO) and strontium zirconate (SZO) have been grown by the floating zone method with vertical mirror arrangement. The X-ray diffraction analysis revealed orthorhombic perovskite structures for both compounds. Evaporation of Sr-containing species during the growth was proved by micro x-ray fluorescence analysis and led to slightly Sr-poor composition in the studied materials. The overall scintillation efficiency of SHO was found to be comparable with that of Bi4Ge3O12 standard scintillator, while that of SZO was considerably lower. The emission spectrum of both compounds was red-shifted when compared to the previously intensively studied powder counterparts and the photoluminescence decay curves became accelerated with pronounced nonexponentiality. The phenomenological model applied to the temperature dependences of the luminescence data revealed that in single crystals the leading luminescence process is either strongly modified with respect to powders or is of a different origin. The scintillation light yield of both materials was determined to be only several tens of photons per MeV under alpha-ray excitation due to strong afterglow, most probably related to ionization of excited state of the luminescence center.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2019

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

1873-1252

Volume of the periodical

98

Issue of the periodical within the volume

December

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

7

Pages from-to

—

UT code for WoS article

000505108100072

EID of the result in the Scopus database

2-s2.0-85074710814