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Results on matrix materials














The HWU and University Bern team have measured the PLQY of β-NaYF4:Er3+ UC phosphor under broadband excitation.  The PLQY has been shown to increase from 8.7% to 16.2% as the bandwidth of the incident 1.5 mm light from 12 nm to 61 nm.  The resulting PLQY of 16.2 ± 0.5% at 2270 ± 100 mW mm-2 (0.0007 W-1 cm2) or equivalently 155·103 ± 7·103 suns is the highest value reported in the literature.


Publications on matrix materials


Ultra-high photoluminescent quantum yield of β-NaYF4: 10% Er3+ via broadband excitation of upconversion for photovoltaic devices (Optics Express)


The Nanospec Project is funded by the European Community's Seventh Framework Program (FP7/2007-2013) under grant agreement no. [246200].

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