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  English.dicp.cas.cn    Posted:2013-11-21
Carbon Nanotubes and NanoCarbon Hybrid Materials

Time:2013122日,星期一,上午9:00

Location:生物楼学术报告厅

Lecturer:Prof. Hongjie Dai

 Stanford University

Introduction:

Prof. Hongjie Dai is a J.G. Jackson & C.J. Wood Professor of Chemistry at Stanford University. He got a M.S. in Applied Sciences in 1991 from Columbia University and a Ph.D. in Applied Physics/Physical Chemistry in 1994 from Harvard University. Prof. Hongjie Dai is member of the editorial boards of Applied Physics A, Advance Functional Materials, Small and Chemical Physics Letters. Among his awards are the American Chemical Society's ACS Award in pure chemistry, 2002, the Julius Springer Prize for Applied Physics, 2004, and the American Physical Society's James C. McGroddy Prize for New Materials, 2006. He was elected to the American Academy of Arts and Sciences in 2009, and to the American Association for the Advancement of Science in 2010.

Hongjie Dai and his group have made key contributions to carbon nanotube and nano-graphene synthesis, functionalization and applications for biological systems, nano-electronics and energy research. Dai has published ~230 papers on these topics in the past 15 years, with a total citation of ~ 70,000 times according to Google Scholar. His h-index is 123 and he ranked as the 7th most cited Chemist in 2000-2010 according to Thomas Reuter.

Abstract:

This talk will cover two topics. The first is a new biological imaging technique based on the intrinsic fluorescence of carbon nanotubes, quantum dots and organic molecules in the so called NIR-II region in the spectral window of 1000-1400nm. In vivo real-time epifluorescence imaging of mouse hind limb vasculatures in the second near-infrared region (NIR-II) is performed using in NIR-II. Both high spatial (~30 micron) and temporal (<200 ms per frame) resolution for small-vessel imaging are achieved at 1–3 mm deep in the hind limb owing to the beneficial NIR-II optical window that affords deep anatomical penetration and low scattering. This spatial resolution is unattainable by traditional NIR imaging (NIR-I) or microscopic computed tomography, and the temporal resolution far exceeds scanning microscopic imaging techniques. Chirality sorted SWNTs for biological applications will also be presented.

Secondly, the work on carbon nanotubes, graphene nanoribbons and inorgani-nanocarbon hybrid materials will be presented. Recent work on making nanoparticles and nanocrystals on carbon nanotubes and graphene sheets for energy storage and photocatalytic applications will be introduced. And the results on enrichment of semiconducting SWNTs with high purity and self-assembly of semiconducting SWNTs high packing density of >100 tubes/µm for device applications will be reported.

Contact:DNL17 刘慧颖(9577

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