VINSE Colloquia Series: “Graphene for Enhancement of Raman Effect” Dr. Dresselhaus; MIT 10/8/14
VINSE COLLOQUIUM SERIES
Dr. Mildred Dresselhaus
Professor of Physics and Electrical Engineering, Emerita
Institute Professor
MIT, Department of Physics
Host: Yaqiong Xu
“Graphene for Enhancement of Raman Effect”
4:10 PM, 5326 Stevenson Center
3:45 refreshments 5326 Stevenson Center Hallway
Abstract: Results are presented showing enhancement of the Raman spectral signal of molecules by their placement on a graphene substrate. The conditions for observation of signal enhancement are identified as well as conditions when no enhancement is observed. A decrease in the enhancement effect is observed with decreasing number of graphene layers in few-layer graphene. Although an enhancement effect can also be seen for the same molecules on transition metal dichalcogenides, the magnitude of the enhancement effect is greatly decreased relative to monolayer graphene.
Mildred Dresselhaus is an Institute Professor at MIT in the departments of Electrical Engineering and Physics. Recent research activities in the Dresselhaus group that have attracted wide attention are in the areas of carbon nanotubes, bismuth nanostructures, and low-dimensional thermoelectricity. She is a member of the National Academy of Sciences, the National Academy of Engineering, and has served as Director of the US Department of Energy Office of Science, President of the American Physical Society, Treasurer of the National Academy of Sciences, President of the American Association for the Advancement of Science, chair of the US National Academy Decadal Study of Condensed Matter and Materials Physics, and on many advisory committees and councils. Dr. Dresselhaus has received numerous awards, including the US National Medal of Science, the Fermi Award, the Kavli Prize, and 31 honorary doctorates worldwide. She is the co-author of eight books and about 1700 papers on carbon science, and is particularly well known for her work on carbon nanomaterials and other nanostructural systems. Her research over the years has covered a wide range of problems in condensed matter and materials physics.