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Published on Dec 5, 2016
[Title] The Remarkable Optical Properties of Single-Walled Carbon Nanotubes [Speaker] R. Bruce Weisman [Date & Time] Monday, November 14, 2016 11:00 a.m. [Place] I²CNER Hall, Ito campus, Kyushu University [Abstract]Single-walled carbon nanotubes (SWCNTs) are a family of artificial nanostructures with unique physical and chemical properties. They are the subject of intense interest in basic and applied research. Each SWCNT consists of carbon atoms covalently bonded into a tubular structure with long-range order and a specific diameter, roll-up angle, and electronic band structure. Most SWCNTs are semiconducting and show band gap photoluminescence (fluorescence) at characteristic wavelengths in the short-wave infrared. The discovery, interpretation, and properties of SWCNT fluorescence will be described. Some examples will also be presented showing how nanotube spectroscopy is used to characterize samples and to study structure-dependent physico-chemical processes.