纳米金刚石颗粒的衬底增强效应研究  

Research on effect of substrate enhancement of nanodiamond particles

作　　者：翟陈婷 唐军[1] 郭浩[1] 赵苗苗[1] 郭旭东[1] 刘俊[1] 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室电子测试技术重点实验室,山西太原030051

出　　处：《传感器与微系统》2015年第11期16-18,22,共4页Transducer and Microsystem Technologies

基　　金：国家杰出青年科学基金资助项目(51225504);国家自然科学基金重点资助项目(91123036);山西省高等学校优秀青年学术带头人支持计划资助项目

摘　　要：金刚石氮空位(NV)色心由于具有发光稳定、无毒、量子特性已成为最有发展前景的生物荧光标记材料。为进一步提高生物荧光标记检测和识别的分辨率,结合表面荧光增强效应,提出了结合Si,Si O2,金属三种不同折射率的材料来实现对NV色心荧光信号的增强特性。测试结果表明:金刚石结构与金属材料相结合后荧光增强最大达到17.71倍,进一步表明荧光增强机理,为提高生物荧光标记检测和识别灵敏度与分辨率提供了研究基础。Due to its light stability,non-toxic and quantum properties,nitrogen-vacancy（ NV） color center of diamond nanocrystal has become the most promising of fluorescently labeled biological material. In order to enhance detection and identification resolution of biological fluorescent label,feature enhancement of NV color center fluorescent signal is conducted in combination with the surface enhanced fluorescence effect,and enhancement research is realized by combining three different refractive index materials,Si,Si O2 and metal. The test results show that the maximum fluorescence enhancement can be improved 17. 71 times,when diamonds structures are combined with metal materials,even further indicate that the enhanced fluorescence mechanism provides research basis for increase of detection and identification sensitivity and resolution of biological fluorescence labeling.

关 键 词：氮空位色心 表面荧光增强 荧光标记 

分 类 号：O675.3[理学—化学] O656.4