纳米结构对稀土离子及分子类发光中心荧光性质的调控  

Controlling on the luminescence property of RE ionic and molecular optical centers with nanostructure system

作　　者：郑海荣[1] 董军[1] 何恩节[1] 张正龙[1] 

机构地区：[1]陕西师范大学物理学与信息技术学院,西安710062

出　　处：《科学通报》2015年第10期899-911,共13页Chinese Science Bulletin

基　　金：国家自然科学基金(11174190;11304247)资助

摘　　要：无论是对有机荧光分子还是稀土离子掺杂的纳米发光体系,其荧光调控和探测灵敏度的不断提高是基础和应用研究者一直关注的焦点.在发展传统的调控理论和技术的同时,以金属纳米结构为载体的表面等离激元和"热点"增强区域的形成,为荧光调控和增强研究提供了新的机遇.本文针对稀土离子掺杂纳米材料和有机分子发光体系,阐述常见的荧光调控途径,并就金属纳米结构相关的表面增强荧光效应及其现状进行讨论,开拓实现高效荧光调控的思路.通过探索荧光调控的机理和技术路线,以期引发对光谱增强和荧光调控基本理论和技术发展的深入思考和探索.Luminescence control and sensitivity increase have attracted widespread attention in luminescence materials and spectroscopy research, which has included investigations on the fundamental mechanisms and potential applications of organic and rare-earth-doped luminescent materials. Along with conventional theory and technique development, surface plasmons and enhanced “hot spots” produced by metal nanostructures provide promising opportunities for luminescence control and intensity enhancement. In the current review, the methods traditionally employed for luminescence control are reviewed, and surface-enhanced luminescence introduced by metal nanostructures is discussed intensively for both organic molecules and rare-earth-doped nanomaterials. It is expected that more systematic and comprehensive exploration on the basic mechanism and techniques can be conducted, and some creative thoughts and methods for efficient luminescence control are suggested.

关 键 词：纳米结构 表面等离激元 发光中心 荧光发射 光谱调控 

分 类 号：TQ422[化学工程] TB383.1[一般工业技术—材料科学与工程]