报告人：张玉明研究员 (台湾大学)
报告题目：What is going on with SERS technique after 40 years’ study
报告时间：2017年4月15日（星期六）上午10点
报告地点：909楼一楼B厅
摘要
Surfaced enhanced Raman scattering (SERS) has promised to be a powerful tool from chemical analysis to bio-sensors due to its single-molecule sensitivity. However, after 40 years’ study, problem with large signal fluctuations to reproducibility has still impeded SERS from widespread application. The fabrication of SERS substrate with large and uniform SERS enhancement becomes crucial for practical applications.
In this talk, we would like to share what we have learned from our recent SERS investigation. The SERS phenomena of silver nanoparticle (AgNP) monolayers grown by Langmuir-Blodgett (LB) technique can be statistically analyzed and realized with laser scanning confocal micro-Raman spectroscopy and microscopy. The temporal behavior and spatial distribution of SERS hot spots were investigated in details. We believe that a well-established statistical analysis of SERS hot spots can be used to characterize the performance of SERS substrate in the near future.
Reference
1. H.-Y. Chen, M.-H. Lin, C.-Y. Wang, Y.-M. Chang, and S. Gwo, J. Am. Chem. Soc. 137, 13698–13705 (2015).
简介
Ph.D. in Physics, University of California at Riverside (1991-1996), Postdoctoral Fellow, Cornell University (1996-1998), Assistant Professor, National Dong-Hwa University (1998-2000), Assistant Research Fellow, Center for Condensed Matter Sciences, National Taiwan University (2000-2004), Associate Research Fellow, CCMS, NTU (2004-2011), Research Fellow, CCMS, NTU (since 2011).
Research Interests: Ultrafast physical phenomena in semiconductors and their nanostructures, Nonlinear optics, Ultrafast laser spectroscopy and microscopy
联系人：何耀教授