September 30, 2013
Hosted by: Richard Osgood
Speaker: Dr. Tony Low, Nanoscale Science and Technology Group, IBM TJ Watson Research
The emergence of new technology is often preceded by significant advances in materials. Recent discovery of a new class of two-dimensional (2D) crystals, with widely diverse electrical, mechanical and optical properties potentially presents such an opportunity. In particular, the well-known semi-metallic graphene, which possesses unique properties such as gate tunability, high carrier mobility, wide-band optical absorption and compatibility with silicon processing technologies has already been identified for range of electronic, optoelectronic and plasmonic devices. In this talk, I will review our recent efforts in the exploration and understanding of these devices, drawing upon both theoretical and experimental studies. This includes the study of the limiting electron scattering mechanisms in large scale grown graphene and molybdenum disulphide, limiting mechanisms on the performance of graphene photodetectors, basic plasmonic responses in graphene nanostructures and its bilayer.
Tony Low received his Ph.D. degree in Electrical and Computer Engineering from the National University of Singapore in 2008. In 2007, he was a visiting scientist at the Network for Computational Nanoelectronics at Purdue University, where he became a post-doctoral research associate in 2008. In 2011, he joined the Nanoscale Science and Technology group at IBM TJ Watson research center. His research interests are in the theory and simulations of novel materials and devices for applications in computing, information and energy. Recently, he has contributed extensively to the studies of graphene electronics, optoelectronics and plasmonics devices.