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Ca1-x-yYbxPryF2+x+y solid solution powders as a promising materials for crystalline silicon solar energetics
2018
Nanosistemy fizika himiâ matematika
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We have synthesized single-phase powders of Ca 1−x−y YbxPryF 2+x+y solid solutions with an average particle size of about 35 nm by co-precipitation from aqueous nitrate solutions. After annealing at 600 • C during 1 hour, the particle size was increased up to 150-200 nm. Individual luminescence bands of praseodymium are distinguishable in the luminescence spectrum. The intensity of the luminescence of ytterbium increased by a factor of 1000 in comparison with the unannealed samples. The highest
doi:10.17586/2220-8054-2018-9-2-259-265
fatcat:e4ivaxjhhbbjvmkaqzbak5p7k4