Polymorphism in SmSc3(BO3)4: Crystal structure, luminescent and SHG properties

Polymorphism in SmSc3(BO3)4: Crystal structure, luminescent and SHG properties

Low temperature C2/c and high temperature P321 modifications of SmxSc4-x (BO3)4 solid solutions were grown from LiBO2–LiF flux. These borates have typical luminescence for Sm3+ containing crystals with the two strongest peaks at 602 and 645 nm, which correspond to 4G5∕2 → 6H7∕2, 6H5∕2 electron trans...

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Veröffentlicht in:Journal of alloys and compounds 2021-01, Vol.851, p.156825, Article 156825
Hauptverfasser: Kuznetsov, Artem B., Kokh, Konstantin A., Kononova, Nadezda G., Shevchenko, Vyacheslav S., Rashchenko, Sergey V., Ezhov, Dmitry M., Jamous, Ammar Y., Bolatov, Asset, Uralbekov, Bolat, Svetlichnyi, Valery A., Kokh, Aleksander E.
Format: Artikel
Sprache:eng
Schlagworte:
Borates
Crystal growth
Crystal structure
Crystals
Electron transitions
High temperature
Infrared spectroscopy
Lithium fluoride
Low temperature
Luminescence
Polymorphism
Raman spectroscopy
Rare earth borate
SHG
Solid solutions
Solid state synthesis
Structure
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Zusammenfassung:Low temperature C2/c and high temperature P321 modifications of SmxSc4-x (BO3)4 solid solutions were grown from LiBO2–LiF flux. These borates have typical luminescence for Sm3+ containing crystals with the two strongest peaks at 602 and 645 nm, which correspond to 4G5∕2 → 6H7∕2, 6H5∕2 electron transitions. In addition, the compounds were characterized by IR and Raman spectroscopy. SHG intensity for trigonal modification was found to be three times higher than that of KDP revealing its high potential for various NLO applications. •Monoclinic and trigonal phase of SmxSc4-x (BO3)4 crystals were grown from LiBO2 –LiF flux.•Sm0.78Sc3.22(BO3)4 structure was solved.•Luminescent and absorption spectra for SmxSc4-x (BO3)4 crystals were measured.•SHG intensities of SmxSc4-x (BO3)4 are 2.3–3 times higher than that of KDP.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2020.156825