Fabrication of Microcrystalline NaPbLa(WO4)(3):Yb3+/Ho3+ Phosphors and Their Upconversion Photoluminescent Characteristics | Научно-инновационный портал СФУ

Fabrication of Microcrystalline NaPbLa(WO4)(3):Yb3+/Ho3+ Phosphors and Their Upconversion Photoluminescent Characteristics

Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.3740/MRSK.2019.29.12.741

Ключевые слова: yellowish green phosphor, triple tungstate, microwave assisted sol-gel, upconversion characteristics.

Аннотация: New triple tungstate phosphors NaPbLa(WO4)(3):Yb3+/Ho3+ (x = Yb3+/Ho3+ = 7, 8, 9, 10) are successfully fabricated by microwave assisted sol-gel synthesis and their structural and frequency upconversion (UC) characteristics are investigated. The compounds crystallized in the tetragonal space group I4(1)/a and the NaPbLa(WO4)(3) host have unit cell parameters a = 5.3927(1) and c = 11.7961(3) angstrom, V = 343.05(2) angstrom(3), Z = 4. Under excitation at 980 nm, the phosphors have yellowish green emissions, which are derived from the intense S-5(2)/F-5(4) -> I-5(8) transitions of Ho3+ ions in the green spectral range and strong F-5(5) -> I-5(8) transitions in the red spectral range. The optimal Yb3+ :Ho3+ ratio s revealed to be x = 9, which is attributed to the quenching effect of Ho3+ ions, as indicated by the composition dependence. The UC characteristics are evaluated in detail under consideration of the pump power dependence and Commission Internationale de L'Eclairage chromaticity. The spectroscopic features of Raman spectra are discussed in terms of the superposition of Ho3+ luminescence and vibrational lines. The possibility of controlling the spectral distribution of UC luminescence by the chemical content of tungstate hosts is demonstrated.

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Издание

Журнал: KOREAN JOURNAL OF MATERIALS RESEARCH

Выпуск журнала: Vol. 29, Is. 12

Номера страниц: 741-746

ISSN журнала: 12250562

Место издания: SEOUL

Издатель: MATERIALS RESEARCH SOC KOREA

Авторы

  • Lim Chang Sung (Hanseo Univ, Dept Aerosp Adv Mat & Chem Engn, Seosan 356706, South Korea)
  • Atuchin Victor V. (SB RAS, Lab Opt Mat & Struct, Inst Semicond Phys, Novosibirsk 630090, Russia; Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia; Kemerovo State Univ, Res & Dev Dept, Kemerovo 650000, Russia)
  • Aleksandrovsky Aleksandr S. (Fed Res Ctr KSC SB RAS, Lab Coherent Opt, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660041, Russia)
  • Denisenko Yuriy G. (Tyumen State Univ, Dept Inorgan & Phys Chem, Tyumen 625003, Russia; Ind Univ Tyumen, Dept Gen & Special Chem, Tyumen 625000, Russia)
  • Molokeev Maxim S. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia; Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia)
  • Oreshonkov Aleksandr S. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; Fed Res Ctr KSC SB RAS, Lab Mol Spect, Kirensky Inst Phys, Krasnoyarsk 660036, RussiaArticle)

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