Synthesis Study of Lu<SUB>3</SUB>Al<SUB>5</SUB>O<SUB>12</SUB>(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 Lu3Al5O12(Ce) powder calcined at 1000℃ for 2h has an average particle size of 30nm.And its photoluminescence is the strongest among the powders calcined in the range from 850℃ to 1200℃.