Effect of type and concentration of RE3+ (RE = Pr, Nd, Eu, Yb) on structure, actual crystal and local compositions and spectroscopic properties of SrMoO4:RE3+ single crystals for optoelectronics

Kuz’micheva, G.M.; Kaurova, I.A.; Ivleva, L.I.; Lazarenko, V.A.; Khramov, E.V.; Fionov, A.V.

Авторы: Kuz’micheva Galina M., Kaurova Irina A., Ivleva Liudmila I., Lazarenko Vladimir A., Khramov Evgeny V., Fionov Alexander V.
Журнал: Journal of Materials Science
Том: 60
Номер: 33
Год издания: 2025
Издательство: Springer Nature
Местоположение издательства: Switzerland
Первая страница: 14560
Последняя страница: 14585
DOI: 10.1007/s10853-025-11295-6
Аннотация: Doping-induced structural changes and spectroscopic parameters of Czochralski-grown RE3+-activated strontium molybdate SrMoO4 (SMO:RE; RE3+ = Pr, Nd,Eu, Yb) single crystals as well as specifc local behavior of RE3+ ions dependingon the type, concentration (0.2–3.0 wt. %) and the method of introducing thedopant (RENbO4 with RE = Pr, Nd, Eu, Yb or Yb2O3) are described in this paper.X-ray single-crystal difraction analysis of macro- (laboratory difractometer) andmicroparts (synchrotron) of SMO:RE crystals showed a diference between theinitial and actual compositions and refned compositions of macro- and microparts due to growth, physical–chemical and methodological reasons. A complexcharacterization of defect formation including all types of point defects (vacancies, interstitials, substitutional atoms, etc.) and charge compensation mechanismsin SMO:RE crystals depending on the RE composition and concentration is performed. Formal charges, coordination numbers and coordination polyhedra ofRE, Mo, Nb in SMO:RE are found using X-ray absorption spectroscopy (EXAFS/XANES) and electron paramagnetic resonance. The structural and structuredependent spectroscopic and laser characteristics of polycrystalline and singlecrystal SMO:RE, obtained by diferent methods, with diferent type (RE = La – Lu)and concentrations of RE3+ ions are summarized and analyzed based on our ownand literary data.
Добавил в систему: Фионов Александр Викторович

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Effect of type and concentration of RE3+ (RE = Pr, Nd, Eu, Yb) on structure, actual crystal and local compositions and spectroscopic properties of SrMoO4:RE3+ single crystals for optoelectronicsстатья Исследовательская статья

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