Structural and optical properties of Nd3+ doped columbite SrNb2O6

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Ekmekçi M. K., Erdem M., Başak A. S., Danış Ö.

OPTIK, cilt.127, sa.8, ss.4123-4126, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 127 Sayı: 8
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.ijleo.2016.01.107
  • Dergi Adı: OPTIK
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4123-4126
  • Anahtar Kelimeler: Columbite niobates, Molten salt synthesis, Luminescence, MICROWAVE DIELECTRIC-PROPERTIES, NONSTOICHIOMETRY
  • Marmara Üniversitesi Adresli: Evet

Özet

Nd-doped SrNb2O6 particles have been prepared by a molten salt method using strontium nitrate, niobium oxide and NaCl-KCl salt mixture as a flux at a relatively low temperature as compared to solid-state reaction method. X-ray diffraction patterns of the pure SrNb2O6 samples exhibited a single orthorhombic phase. Photoluminescence (PL) properties of Nd-doped samples in near-infrared spectral region were studied in detail. A characteristic luminescence of Nd3+ at 1.06 mu m was observed for Nd-doped SrNb2O6. Concentration quenching phenomenon was detected depending on the Nd-doping concentrations at room temperature. This characteristic of the doped samples may be ascribed to the energy transfer between Nd3+ and niobate groups (NbO6). (C) 2016 Elsevier GmbH. All rights reserved.