Dept of Physics & Astronomy
University of Maine, Orono, Maine
Presents
Sarbajit Banerjee
Assistant Professor of Chemistry
SUNY Buffalo
Abstract
Building from the “Bottom Up”: Towards Metal Oxide Nanomaterials for the
Next Generation of Batteries and Computer Chips
The microelectronics industry is poised for a paradigm shift as existing silicon-based technology starts to hit fundamental roadblocks that will prevent the scaling of integrated circuits to smaller dimensions. Materials scientists will undoubtedly play a major role in devising and optimizing new materials for the next generation of microprocessors. The focus of our research is the synthesis, characterization, assembly, and device integration of metal oxide nanostructures that function as transistors, capacitors, memory elements, and power sources. We attempt to understand how the properties of materials are altered by scaling to finite size, and further try to assemble nanoscale building blocks to construct multifunctional device architectures. In this talk I will focus on our efforts at preparing nanoscale VO2 structures for switchable field-effect transistors, nanostructured V2O5 and vanadium oxide bronzes for Li-ion batteries, and hafnium/zirconium oxide nanocrystals for gate dielectrics. Two key themes of our research are the assembly of fairly complex computing architectures using solution-based methods and the use of X-ray absorption spectroscopy to probe finite size effects on the electronic structure of nanomaterials.
Friday, April 2, 2010
3:10 pm
137 Bennett Hall
Refreshments will follow in Rm. 114, Bennett Hall
Bio
Sarbajit Banerjee received his undergraduate education at St. Stephen’s College, University of Delhi, graduating with a bachelor’s degree in chemistry in 2000. He then went on to complete his Ph.D. at the State University of New York at Stony Brook and Brookhaven National Laboratory under the supervision of Prof. Stanislaus S. Wong, focusing on the surface chemistry of carbon nanotubes and the use of X-ray absorption spectroscopy to study nanostructures. From 2004 to 2007 Sarbajit was a post-doctoral research scientist in the group of Professor Irving P. Herman in the Department of Applied Physics and Applied Mathematics and the Nanoscale Science and Engineering Center at Columbia University. He started as an assistant professor in the Department of Chemistry at the University at Buffalo in the Fall of 2007. He has authored over 45 peer-reviewed publications and holds 6 patents. He was awarded an NSF CAREER award in 2009 and is the 2010 recipient of the American Chemical Society ExxonMobil Solid State Chemistry Fellowship. Sarbajit’s current research interests are in the areas of carbon and metal oxide nanostructures for electronics and energy storage.
Friday, April 2, 2010
3:10 p.m.
137 Bennett Hall
Image Description: Scanning electron microscopy images of VO2 nanowires
Image Description: An array of V2O5 nanowires