UP-CONVERSION LUMINESCENCE OF CaF2-SrF2-HoF3 SOLID SOLUTIONS UPON EXCITATION OF THE 5I7 LEVEL OF Ho3+ IONS

  • Андрей Александрович Ляпин Национальный исследовательский Мордовский государственный университет
  • Михаил Константинович Бубнов National Research Mordovia State University
  • Сергей Александрович Букарев National Research Mordovia State University
  • Сергей Вячеславович Гущин National Research Mordovia State University
  • Василий Андреевич Конюшкин Prokhorov General Physics Institute, Russian Academy of Sciences
  • Сергей Викторович Кузнецов Prokhorov General Physics Institute, Russian Academy of Sciences
  • Андрей Николаевич Накладов Prokhorov General Physics Institute, Russian Academy of Sciences
  • Полина Анатольевна Рябочкина National Research Mordovia State University
  • Павел Павлович Федоров Prokhorov General Physics Institute, Russian Academy of Sciences
Ключевые слова: up-conversion luminescence, rare-earth ions, fluorides, luminescence yield

Аннотация

Up-conversion luminescence spectra of CaF2-SrF2-HoF3 single crystals were investigated upon excitation by laser radiation with a wavelength of 1940 nm to the 5I7 level of Ho3+ ions. The CaF2-SrF2-HoF3 single crystals were grown by the vertical directional crystallization method. For these excitation conditions, quantitative characteristics of the up-conversion luminescence of Ho3+ ions were determined: energy yield, chromaticity coordinates, and correlated color temperatures. The possibility of increasing the efficiency of solar cells due to the conversion of infrared radiation in CaF2-SrF2-HoF3 crystals was considered.

Опубликован
2023-04-02