Structural and spectroscopic properties of new noncentrosymmetric self-activated borate Rb3EuB6O12 with B5O10 units

Описание

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1016/j.matdes.2017.12.004

Ключевые слова: Infrared spectroscopy, Luminescence, Raman, Rietveld refinement, Rubidium rare earth borate, Solid state reaction

Аннотация: New noncentrosymmetric double borate Rb3EuB6O12 was designed and synthesized by the solid state reaction method, and its crystallographic parameters were obtained by Rietveld analysis. This borate crystallizes in the trigonal space group R32 with cell parameters a = 13.4604(2) Å c = 30.7981(5) Å Z = 15. Its structure features a thrПоказать полностьюee-dimensional framework composed of the [B5O10]5 − groups that are bridged by Eu-O polyhedra. The existence of B5O10 group in the structure was confirmed by vibrational spectroscopy. Rb3EuB6O12 melts incongruently at 1101 K. The second harmonic generation effect of Rb3EuB6O12 is 16 times higher than that of the α-quartz standard. In the luminescence spectrum, the domination of a single prominent narrow line from the hypersensitive 5D0 - 7F2 manifold of Eu3 + ions is observed, while the 5D0 - 7F1 manifold and ultranarrow 5D0 - 7F0 line are of comparable peak intensity. These features are explained by a specific local symmetry of the Eu3+ ion within the crystal structure of Rb3EuB6O12. © 2017 Elsevier Ltd

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Издание

Журнал: Materials and Design

Выпуск журнала: Vol. 140

Номера страниц: 488-494

Издатель: Elsevier Ltd

Авторы

  • Subanakov A.K. (RAS, SB, Baikal Inst Nat Management, Ulan Ude 670047, Russia; Buryat State Univ, Ulan Ude 670000, Russia)
  • Atuchin V.V. (RAS, SB, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia; Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia; South Ural State Univ, Lab Single Crystal Growth, Chelyabinsk 454080, Russia)
  • Aleksandrovsky A.S. (RAS, SB, Fed Res Ctr, Lab Coherent Opt,Kirensky Inst Phys,KSC, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Inst Nanotechnol Spect & Quantum Chem, Krasnoyarsk 660041, Russia)
  • Bazarov B.G. (RAS, SB, Baikal Inst Nat Management, Ulan Ude 670047, Russia; Buryat State Univ, Ulan Ude 670000, Russia)
  • Bazarova J.G. (RAS, SB, Baikal Inst Nat Management, Ulan Ude 670047, Russia; Buryat State Univ, Ulan Ude 670000, Russia)
  • Gavrilova T.A. (RAS, SB, Inst Semicond Phys, Lab Nanodiagnost & Nanolithog, Novosibirsk 630090, Russia)
  • Krylov A.S. (RAS, SB, Fed Res Ctr, Lab Mol Spect,Kirensky Inst Phys,KSC, Krasnoyarsk 660036, Russia)
  • Molokeev M.S. (RAS, SB, Fed Res Ctr, Lab Crystal Phys,Kirensky Inst Phys,KSC, Krasnoyarsk 660036, Russia; Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia; Siberian Fed Univ, Krasnoyarsk 660079, Russia)
  • Oreshonkov A.S. (RAS, SB, Fed Res Ctr, Lab Mol Spect,Kirensky Inst Phys,KSC, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia)
  • Stefanovich S.Yu. (Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia)

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