Correlating structural disorder and Pr3+ emission dynamics in Lu3Al2.5-xScxGa2.5O12 crystals: A comprehensive structure-property investigation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00635574" target="_blank" >RIV/68378271:_____/25:00635574 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0366737" target="_blank" >https://hdl.handle.net/11104/0366737</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsomega.5c01062" target="_blank" >10.1021/acsomega.5c01062</a>
Alternative languages
Result language
angličtina
Original language name
Correlating structural disorder and Pr3+ emission dynamics in Lu3Al2.5-xScxGa2.5O12 crystals: A comprehensive structure-property investigation
Original language description
This study explored the influence of Sc3+ ions incorporation on the structural, vibrational, luminescent, and scintillation properties of Pr3+-doped Lu3(Al, Sc)2.5Ga2.5O12 garnet crystals. Addressing the limited research on Sc-admixed and Pr3+ doped garnet systems, this work successfully demonstrated the crystallization of garnet crystals from the melt, overcoming the substantial atomic mismatch between Sc and Al while preserving the thermodynamic stability of the garnet phase. Importantly, Sc-admixing enhanced atomic homogeneity and allowed for increased doping concentrations of Pr3+ ions, which is crucial for tailoring the functional properties of advanced optical materials. The trap depths ranged from 1.63 eV (deep traps) to 0.22 eV (shallow traps) across all samples, with frequency factors predominantly between 1 × 107 and 1 × 1011 s–1, consistent with first-order thermoluminescent kinetics. From a materials design perspective, Sc3+ ions substitution induced beneficial host lattice disorder, enhancing the emission intensity of 4f15d11 → 4f2 interconfigurational and 4f2 → 4f2 intraconfigurational transitions. This effect highlighted the potential of Sc as a promising substituent for enhancing the luminescence intensity of rare earth elements. Synchrotron radiation experiments provided insights into the impact of Sc on band gap energy and energy transfer efficiency toward Pr3+ ions offering new opportunities for engineering scintillators and phosphors with tunable optical properties.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GF24-14580L" target="_blank" >GF24-14580L: Advanced single crystalline film scintillators based on the complex oxide compounds: energy transfer engineering for performance optimization</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Omega
ISSN
2470-1343
e-ISSN
2470-1343
Volume of the periodical
10
Issue of the periodical within the volume
19
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
19817-19831
UT code for WoS article
001484231500001
EID of the result in the Scopus database
2-s2.0-105004585202