YAG:Ce3+ Nanopowders:Synthesis,Characteristics and Luminescent Properties
By means of co-precipitation,pure YAG phase was synthesized from the reaction of aluminum yttrium and cerium nitrates with ammonia as precipitator.In order to obtain the special coating oxide precursor,the metal ions solution and ammonia were respectively added with fixed ratio by two peristaltic pumps to maintain an expired pH value and reaction rate.The as-received precursor was annealed at 700℃ and 900℃ respectively.The structure,phase evolution and morphology of the as-prepared YAG nanopowders were tested by XRD,BET and SEM.At lower temperature (900℃),coating oxide precursor was directly transformed to nanopowders of pure YAG phase.The high salt solution concentration was critical for the control of chemical homogeneity within the precursors.The YAG nanopowders were less-aggregated and better-dispersed.The luminescent properties were examined and discussed.
YAG∶Ce3+ Co-precipitation
Min Zhou Cheng Zhang Wenbo Bu Lei Wang Qiang Li
Department of Chemistry,East China Normal University,Shanghai 200062,China Department of Materials Engineering,Shanghai Institute of Technology,Shanghai 200235,China Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200051,China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
429-431
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）