Abstract:Up-conversion materials based on YMO were successfully synthesized by the sol–gel method, and the luminescence colour tuning was achieved by changing the type and concentration of dopant ions (Tm3+, Ho3+).
“…Moreover, it is technically difficult for the fabrication of nano-devices based on them. In contrast, lanthanide-doped nanocrystals have the advantages of smaller and tunable particle sizes and a higher doping concentration of trivalent rare-earth ions for efficient visible and near-infrared luminescence together with mature synthetic methods, [17][18][19][20][21][22][23][24][25] which would also be allowable for MIR fluorescence. To date, some efforts have been devoted toward nanocrystal-glass composites or microlasers with a higher MIR luminescence efficiency.…”
We report a novel strategy to realize the multiple excitation wavelength responsive 2 μm emission of Ho3+ (5I7 → 5I8 transition) in a single nanoparticle by employing an erbium sublattice as the sensitizing host.
“…Moreover, it is technically difficult for the fabrication of nano-devices based on them. In contrast, lanthanide-doped nanocrystals have the advantages of smaller and tunable particle sizes and a higher doping concentration of trivalent rare-earth ions for efficient visible and near-infrared luminescence together with mature synthetic methods, [17][18][19][20][21][22][23][24][25] which would also be allowable for MIR fluorescence. To date, some efforts have been devoted toward nanocrystal-glass composites or microlasers with a higher MIR luminescence efficiency.…”
We report a novel strategy to realize the multiple excitation wavelength responsive 2 μm emission of Ho3+ (5I7 → 5I8 transition) in a single nanoparticle by employing an erbium sublattice as the sensitizing host.
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