Measurement of Quantum Yield of Up-Conversion Luminescence in Er3+-Doped Nano-Glass-Ceramics
A measurement of quantum yield of up-conversion luminescence has been done for the Er3+-doped transparent oxyfluoride glass-ceramics 32(SiO2)9(AlO1.5)31.5(CdF2)18.5(PbF2)5.5(ZnF2): 3.5(ErF3) mol%, where most of Er3+ dopants partition in 8 nm diameter nano-crystals Er10Pb25F65. The yield was found by newly proposed method using the pump power dependence of the resonant luminescence. The result of the measurement points out that a theoretical maximum of 50% may be reached for the up-conversion luminescence yield in this material. This high yield is shown to be due to low phonon energy and short inter-dopant distances in the nano-crystals.
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Document Type: Research Article
Publication date: 2009-03-01
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