Synthesis Study of Lu3Al5O12(Ce) Nanoscaled Powder by Co-precipitation

Ce3+-doped Lutetium aluminum garnet Lu3Al5O12 phosphors were prepared by an anti co-precipitation from mixing solution of lutetium, aluminum and cerium nitrates using the ammonium hydrogen carbonate as precipitate￡ followed by the calcination at low temperatures. TG-DTA, FTIR, XRD, TEM and Photoluminescence were used to characterize the as-prepared phosphors. The calcining temperature has distinctly influence on the particle size and the photoluminescence of the prepared Lu3Al5O12(Ce) powders. The resulted Lu3Al5O12aa(Ce) powder calcined at 1000 or 2h has an average particle size of 30nm. And its photoluminescence is the strongest among the powders calcined in the range from 850 o 1200 a¤