We discuss the influence of Al^3＋ on the charge transfer state （CTS） and the photoluminescence properties of BaZr（BO3）2：Eu. The results reveal that there is a red shift which is about 20nm for the charge transfer state when doping with Al^3＋ and indicate the formation of ‘free＇ electrons due to the change of microstructures. In addition, the influence or Al^3＋ doping on the PPR is analysed and a new explanation is raised based on the photo luminescent mechanism. It is the CTS intensity rather than the CTS energy that influences the peak-peak ratio.
本文重点讨论显示器件用的几种铝酸盐体系发光材料的能量传递过程.在Eu2+掺杂的SrA l2O4体系中,辐射发光是通过基质与激活剂离子之间的能量传递进行的;应用Jahn-Teller效应原理,解释了在BaCdA l10O17中所出现的Eu2+的双重发射带,以及在共掺杂Ce3+之后所发生的能量传递过程;分析引入助融剂后,BaMg A l10O17:Eu2+体系中Eu2+的浓度对能量传递过程的影响以及助融剂对发光性能的影响.
