Weisman, R. Bruce - Rice University - Department of Chemistry

个人简介

B.A. Chemistry (1971) Johns Hopkins University Ph.D. Chemistry (1977) University of Chicago

研究领域

Dr. R. Bruce Weisman and his group investigate the spectroscopy and photophysics of fullerenes and carbon nanotubes. All of these are closed nanoscopic structures formed from carbon atoms. Fullerenes, such as C60, C70, and their chemical derivatives, have unusual molecular properties that cause interesting behaviors following the absorption of light. Time-resolved absorption and emission methods are used to study radiationless decay, photochemical reactions, and energy transfer in fullerenes. Another major research topic is single-walled carbon nanotube spectroscopy. Following the discovery in Weisman?s lab of near-infrared nanotube fluorescence, the group has measured and unraveled the absorption and emission spectra of more than 30 semiconducting nanotube species. Follow-up projects include detailed elucidation of nanotube electronic structure, as well as applications in non-invasive biomedical imaging and analytical nanotechnology.

近期论文

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"Biexciton, Single Carrier, and Trion Generation Dynamics in Single-Walled Carbon Nanotubes," B. Yuma, S. Berciaud, J. Besbas, J. Shaver, S. Santos, S. Ghosh, R.B. Weisman, L. Cognet, M. Gallart, M. Ziegler, B. Hönerlage, B. Lounis, and P. Gilliot, Phys. Rev. B 87, 205412 (2013) (DOI: 10.1103/PhysRevB.87.205412). J. K. Streit, S. M. Bachilo, S. Ghosh, C.-W. Lin, and R. B. Weisman Directly Measured Optical Absorption Cross Sections for Structure- Selected Single-Walled Carbon Nanotubes. Nano Letters. submitted "Directly Measured Optical Absorption Cross Sections for Structure-selected Single-Walled Carbon Nanotubes," Jason K. Streit, Sergei M. Bachilo, Saunab Ghosh, Ching-Wei Lin, and R. Bruce Weisman, Nano Lett. 14, 1530-1536 (2014) (DOI: 10.1021/nl404791y). "Enabling in vivo Measurements of Nanoparticle Concentrations with Three-Dimensional Optoacoustic Tomography," Dmitri Tsyboulski, Anton Liopo, Richard Su, Sergey Ermilov, Sergei Bachilo, R. Bruce Weisman, and Alexander A. Oraevsky, J. Biophotonics, 7, 581-588 (2014) (DOI: 10.1002/jbio.201200233). "High Precision Fractionator for use with Density Gradient Ultracentrifugation," Yara Kadria-Vili, Griffin Canning, Sergei M. Bachilo, and R. Bruce Weisman, Anal. Chem. 86, 11018-11023 (2014) (DOI: 10.1021/ac502365w). "Removing Aggregates from Single-Walled Carbon Nanotube Samples by Magnetic Purification," Saunab Ghosh, Sergei M. Bachilo, and R. Bruce Weisman, J. Phys. Chem. C 118, 4489-4494 (2014) (DOI: 10.1021/jp411941k). S. Ghosh, S. M. Bachilo, and R. B. Weisman Removing Aggregates from Single-Walled Carbon Nanotube Samples by Magnetic Purification. Journal of Physical Chemistry C, submitted "Structure Dependent Optical Activity of Single-Walled Carbon Nanotube Enantiomers," Saunab Ghosh, Sergei M. Bachilo, and R. Bruce Weisman, Fullerenes, Nanotubes, and Carbon Nanostructures 22, 269-279 (2014) (DOI: 10.1080/1536383X.2013.812640). "Structure-Dependent Thermal Defunctionalization of Single-Walled Carbon Nanotubes," Saunab Ghosh, Fang Wei, Xiujun Fan, Robert H. Hauge, W. E. Billups, and R. Bruce Weisman, in preparation. "Variance Spectroscopy: A New Method for Studying Nanoparticle Mixtures," Jason K. Streit, Sergei M. Bachilo, and R. Bruce Weisman, in preparation. B. Yuma, S. Berciaud, J. Besbas, J. Shaver, S. Santos, S. Ghosh, R. B. Weisman, L. Cognet, M. Gallart, M.Ziegler, B. Hönerlage, B. Lounis, and P. Gilliot Biexciton, Single Carrier, and Trion Generation Dynamics in Single-Walled Carbon Nanotubes. Phys. Rev. B, 87 2013: 205412 J. K. Streit, S. M. Bachilo, and R. B. Weisman Chromatic Aberration Short-wave Infrared Spectroscopy: Nanoparticle Spectra without a Spectrometer. Anal. Chem., 85 2013: 1337-1341 A. V. Naumov, D. A. Tsyboulski, S. M. Bachilo, and R. B. Weisman Length-dependent Optical Properties of Single-Walled Carbon Nanotube Samples. Chem. Phys., 422 2013: 255-263 D. L. Kirkpatrick, M. Weiss, A. Naumov, G. Bartholomeusz, R. B. Weisman and O. Gliko Carbon Nanotubes: Solution for the Therapeutic Delivery of siRNA?. Materials, 5 2012: 278-301 A. J. Siitonen, S. M Bachilo, D. A. Tsyboulski, and R. B. Weisman Evidence for Long-Lived, Optically Generated Quenchers of Excitons in Single-Walled Carbon Nanotubes. Nano Lett., 12 2012: 33-38 A. Saha, S. Ghosh, R. B. Weisman, and A. A. Marti Films of Bare Single-Walled Carbon Nanotubes from Superacids with Tailored Electronic and Photoluminescence Properties. ACS Nano, 6 2012: 5727-5734 T. K. Cherukuri, D. A. Tsyboulski, and R. B. Weisman Length- and Defect-Dependent Fluorescence Efficiencies of Individual Single-Walled Carbon Nanotubes. ACS Nano, 6 2012: 843-850 J. K. Streit, S. M. Bachilo, A. Naumov, C. Khripin, M. Zheng, and R. B. Weisman Measuring Single-Walled Carbon Nanotube Length Distributions from Diffusional Trajectories. ACS Nano, 6 2012: 8424-8431 P. A. Withey, V. S. M. Vemuru, S. M. Bachilo, S. Nagarajaiah, and R. B. Weisman Strain Paint: Noncontact Strain Measurement Using Single-Walled Carbon Nanotube Composite Coatings. Nano Lett., 12 2012: 3497-3500 A. V. Naumov, S. Ghosh, D. A. Tsyboulski, S. M. Bachilo, and R. B. Weisman Analyzing Absorption Backgrounds. ACS Nano, 5 2011: 1639-1648 J.-D. R. Rocha, S. M. Bachilo, S. Ghosh S. Arepalli, and R. B. Weisman Efficient Spectrofluorimetric Analysis of Single-Walled Carbon Nanotube Samples. Anal. Chem., 83 2011: 7431-7437