报告题目：Developing novel nanostructure-based next-generation plasmon-enhanced Raman spectroscopy for surface analysis of materials
报告人：Dr. Song-Yuan Ding (丁松园)
2011能源材料化学协同创新中心, 厦门大学
报告时间：2016年05月25日（星期二）上午09:00
报告地点：独墅湖校区 907楼1445室
报告摘要：In a long time, surface-enhanced Ramanspectroscopy (SERS) is widely used for trace-molecule detection and biomoleculeanalysis in homogeneous medium, but suffers from the wide application formaterials science with general material composition and general morphology. Inthis talk, I will first explore the mechanism of SERS and discuss the SERShotspots with inter-particle nanogap which could not be used for surfaceanalysis of general materials. Instead, I will try to discuss a new generationhotspots generated by hybrid structures combining PERS-active nanostructuresand probe materials, which feature a strong local electromagnetic field on thesurface of the probe material. The three key PERS working modes — contact-mode(SERS), shell-isolated mode (shell-isolated nanoparticle-enhanced Ramanspectroscopy, SHINERS) and non-contact mode (tip-enhanced Raman spectroscopy,TERS) could realize the enhancement of surface Raman signals up to five ordersof magnitude can be obtained from materials that are weakly SERS active or SERSinactive. When we discuss SHINERS, a concept of PERS ‘hot domain’ will beraised for surface analysis of metal materials. More importantly, by makingfull use of multiscale coupling through hierarchical structures, additionalenhancement up to 103 could be obtained if we combine prism-coupledsurface plasmon polariton (SPP) with SHINERS. In principle, the concept ofSPP-SHINERS could also be extended to SPP-TERS even on single crystalsurfaces.
报告人简介：2011·iChEM Fellow, Division of X Researches, XiamenUniversity，近年来在纳米光学，表面增强红外和拉曼过方面开展了大量工作，目前已在Nature Rev.Mater., JACS等杂志发表论文多篇，受教育经历：2005年获中科大学士，2012年或厦门大学博士学位，期间赴荷兰Vijre University Amsterdam, Amsterdam联合培养两年。
(报告联系人：姚建林老师课题组）