Up-conversion luminescence of CaF2-SrF2-HoF3 solind solutions upon excitation of the 5I7 level of Ho3+ ions
Bubnov M. K.1, Bukarev S. А. 1, Gushchin S. V. 1, Konyushkin V. А.2, Kuznetsov S. V. 2,3, Lyapin A. A.1, Nakladov А. N. 2, Ryabochkina P. A.1, Voronov V. V.2, Fedorov P. P.2
1Mordovia State University, Saransk, Russia
2Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
3Kazan Federal University, Kazan, Tatarstan, Russia

PDF
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. Keywords: up-conversion luminescence, rare-earth ions, fluorides, luminescence yield. DOI: 10.61011/EOS.2023.03.56182.4085-22
Publisher:

Ioffe Institute

Institute Officers:

Director: Sergei V. Ivanov

Contact us:

26 Polytekhnicheskaya, Saint Petersburg 194021, Russian Federation
Fax: +7 (812) 297 1017
Phone: +7 (812) 297 2245
E-mail: post@mail.ioffe.ru