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In this article we report a comparison of structural and up-conversion (UC) luminescence properties of three compounds used as hosts for Yb3+ and Er3+ ions: YPO4, LaPO4 and GdPO4 phosphates. A co-precipitation method connected with annealing at 900°C was used in order to synthesize nanocrystalline REPO4:Yb3+,Er3+ materials (RE=Y, La, Gd). The X-ray diffraction patterns collected for the prepared materials...
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