采用碳酸盐共沉淀法制备了钕掺杂镱铝石榴石(Nd:Yb3Al5O12;Nd:Yb AG)纳米晶。研究了合成溶液的p H值、煅烧温度和Nd3+掺杂量等对样品的相组成、形貌和发光性能的影响。结果表明:样品结构与Yb AG结构相符合;Nd:Yb AG纳米晶平均粒度约为50 nm。Nd3+掺杂的摩尔分数为3.5%时,样品的上转换蓝光最强,对应Nd3+的2G9/2→4I9/2能级跃迁;Nd3+掺杂量为1.5%时,上转换绿光最强,对应Nd3+的2G7/2→4I9/2能级跃迁;当Nd3+掺杂量为3%时,近红外区荧光性能最佳,对应Nd3+的4F3/2→4I11/2能级跃迁,样品具备良好的发光特性。 Nd-doped ytterbium aluminum garnet (Nd: Yb3Al5O12; Nd: Yb AG) nanocrystals were prepared by carbonate coprecipitation method. The effects of p H value, calcination temperature and doping amount of Nd3 + on the phase composition, morphology and luminescent properties of the samples were investigated. The results show that the structure of the sample is in accordance with the structure of Yb AG. The average size of Nd: Yb AG nanocrystals is about 50 nm. When the Nd3 + doping amount is 3.5%, the up-converted blue light of the sample is the strongest, corresponding to the 2G9 / 2 → 4I9 / 2 level transition of Nd3 +; when Nd3 + doping amount is 1.5%, the up- When Nd3 + doping amount is 3%, the fluorescence performance in the near infrared region is the best, corresponding to the 4F3 / 2 → 4I11 / 2 energy transition of Nd3 +, the sample has good luminescence characteristic.