Er^(3+)、Pr^(3+)共掺杂AlN薄膜的发光特性和能量传递机理  

Luminescence Properties and Energy Transfer Mechanism in Er^(3+) and Pr^(3+) Co-implanted AlN Films

作　　者：陈飞飞[1] 王晓丹[1] 阳明明[2] 毛红敏[1] 

机构地区：[1]苏州科技大学数理学院江苏省微纳热流技术与能源应用重点实验室,江苏苏州215009 [2]中国科学院苏州纳米技术与纳米仿生研究所,江苏苏州215123

出　　处：《光子学报》2017年第8期92-96,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(Nos.61306004;51002179;51272270);江苏省自然科学基金(No.BK20130263);中国科学院功能开发项目(No.yg2012093);江苏高校优势学科建设工程项目;苏州科技学院氧化物薄膜材料与光学信息协同创新中心项目;苏州市低维光电材料与器件重点实验室项目(No.SZS201611);苏州科技大学科研基金项目(No.XKZ201609)资助~~

摘　　要：采用离子注入的方法在氮化铝(AlN)薄膜中实现Er^(3+)和Pr^(3+)的共掺杂,以阴极荧光光谱仪为主要表征手段,对其发光特性进行研究.对于Er^(3+)单掺杂的AlN薄膜,在410nm和480nm可以观察到Er^(3+)较强的发光峰,在537nm、560nm、771nm和819nm可观察到Er^(3+)的较弱的发光峰;对于Pr^(3+)单掺杂的AlN薄膜,Pr^(3+)的最强发光峰位于528nm,在657nm和675nm可以观察到Pr^(3+)的较弱的发光峰;而对于Er^(3+)和Pr^(3+)共掺杂的AlN薄膜,在494nm观察到与Pr^(3+)相关的新跃迁峰.根据实验现象,对AlN薄膜中Er^(3+)和Pr^(3+)之间的能量传递机制进行了深入分析,结果表明Er^(3+)的4F7/2→4I15/2能级跃迁与Pr^(3+)的3P0→3H4能级跃迁之间发生了共振能量传递,从而使Pr^(3+)产生了494nm新的发光峰.Er3＋and Pr3＋co-doped AlN thin films were prepared by ion implantation,luminescence properties were characterized via cathodoluminescence spectrometer.For Er3＋doped AlN thin films,410 and 480nm peaks with higher intensity were observed,and there were other weaker peaks observed at537,560,771,and 819 nm.For Pr3＋doped AlN thin films,528 nm peak with higher intensity was observed,and there were other weaker peaks observed at 657 and 675nm.However,for Er3＋ and Pr3＋co-doped AlN thin films,a new luminescence peak at 494 nm was observed and was attributed to Pr3＋.According to the experimental results,the energy transfer mechanism between Er3＋and Pr3＋in AlN thin films were investigated,the results show that resonant energy transfer exists between 4F7/2→4I15/2of Er3＋and 3P0→3H4 of Pr3＋,which results in the new 494 nm luminescence peak of Pr3＋

关 键 词：光电子学 氮化铝 阴极荧光 饵 钋 发光 能量传递 

分 类 号：TN29[电子电信—物理电子学]