报告题目：Colloidal Plasmonic Nanocrystals
(Department of Physics, The Chinese University of Hong Kong)
Colloidal plasmonic nanocrystals exhibit very attractive optical properties. They have proven to be of enormous potential in a wide range of applications. To fully realize their technological potential and further explore their fundamental plasmonic properties relies on the ready availability of high-quality, high-performance nanocrystal products at different amount scales. We have made tremendous efforts over the past decade on the development of synthetic methods for colloidal metal nanocrystals. We have been able to synthesize several types of highly uniform colloidal Au and Ag nanocrystals, investigated their plasmonic properties, and explored a variety of plasmon-enabled applications. In this presentation, I will first describe how we make colloidal plasmonic nanocrystals. I will then talk about plasmonic photocatalysis based on hot electrons and hot holes, and active plasmon switching. Finally I will mention two most recent developments in our group, namely, magnetic plasmon resonance and high-refractive-index dielectric nanostructures, in the field of nanoplasmonics.
Prof. Jianfang Wang got his BS in USTC for Inorganic Chemistry and Computer Software Design in 1993, MS in Peking University for Inorganic Chemistry in 1996, and PhD in Harvard University for Physical Chemistry in 2002. Then he went to UCSB for postdoctoral research in 2002 and obtained assistant professorship in 2005 and associate professorship in 2011 in CUHK. From 2015, Jianfang Wang became a professor in CUHK. He also serves as a board member or editor for international peer review journals, including Nanotechnology, ChemPlusChem, Nanoscale Horizons, Scientific Report, Advanced Materials, Chemical Society Reviews, Advanced Optical Materials and Nanoscale. Prof. Wang has over 170 publications in international journals, with a total citation of more than 22000. His current research interests are colloidal metal nanocrystals, nanoplasmonics, plasmonic photocatalysis and dielectric nanostructures.