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Updated: Mar 6, 2026

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
Nd3+, Ho3+-codoped garnet-related Li7La3Hf2O12 phosphor with NIR luminescence
Yana V Baklanova1, Olga A Lipina1, Lidiya G Maksimova1
1Institute of Solid State Chemistry, UB RAS, 91 Pervomaiskaya, 620990 Ekaterinburg, Russia.
Abstract:
Simultaneous emission lines around 1.05μm, 1.3μm, 1.8μm, 2.1μm and 2.7μm have been observed in Li7La3-xNdxHf2O12:Ho3+ (x=0.00-0.15) under 808nm laser diode excitation. Near-infrared luminescence due to holmium ions with residual concentration in the Li7La3Hf2O12 host has been studied. The intensity of 2.1 and 2.7μm lines associated with 5I7→5I8 and 5I6→5I7 transitions in Ho3+ depends on the neodymium codopant concentration. This result indicates that Nd3+ ions can be potentially used as sensitizers for Ho3+ ions to stimulate the intense near-infrared emission in this system. Possible energy transfer mechanisms between lanthanide ions have been briefly discussed.
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