【兴大报告533】Fluorescence of Single-Walled Carbon Nanotubes
发布时间：2017-10-27 来源:北大化学
题 目
Fluorescence of Single-Walled CarbonNanotubes: From Discovery to Applications
报告人
Prof. R. Bruce Weisman
Department ofChemistry, Rice University, Houston, Texas, USA
时 间
2017年10月27日，下午3:30
地 点
化学楼A204/206
主请人：李 彦
报告摘要
Single-walled carbon nanotubes (SWCNTs) are a familyof artificial nanostructures with unique physical and chemical properties thathave inspired extensive basic and applied research. Most structures of SWCNTs aresemiconducting and show direct band gap photoluminescence (fluorescence) atcharacteristic wavelengths in the short-wave infrared. Eachstructural form of SWCNT displays a characteristic spectral signature thatprovides a powerful basis for qualitative identification and quantitativeanalysis. Fluorescence from SWCNTs is also very robust, allowing steadyemission during long periods of intense irradiation. This enables individualSWCNTs to be imaged and studied in a variety of environments, including liquidsuspensions, polymeric hosts, and biological tissues. The discovery andspectral assignment of SWCNT short-wave infrared fluorescence will be described.Examples will then be presented showing how thiseffect has led to improved sample characterization, studies of fundamentalphotophysical properties, and new applications in biomedicine and engineering.
R. Bruce Weisman is a Professor ofChemistry and of Materials Science and NanoEngineering at Rice University, wherehe is also a member of the Smalley-Curl Institute and the Institute ofBiosciences and Bioengineering. Dr. Weisman received his B.A. from JohnsHopkins University and his Ph.D. in chemistry from the University of Chicago.He did postdoctoral research at the University of Pennsylvania before joiningthe Rice faculty in 1979. Dr. Weisman has held fellowships from the NationalScience Foundation, the Hertz Foundation, and the Alfred P. Sloan Foundation. Prof.Weisman''s current research involves basic and applied studies of carbonnanotubes. He is Treasurer and immediate past Chair of the Nanocarbons Divisionof The Electrochemical Society. Dr. Weisman is also the founder and presidentof Applied NanoFluorescence, LLC. He is a former Co-Editor of the journal Applied Physics A and is an electedFellow of the American Physical Society, The Electrochemical Society, and theAmerican Association for the Advancement of Science.
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