[CCoE Notice] Seminar: Metal Oxide Nanostructures for Electronics and Energy Applications: Endowing "Intelligence" Through Phase Transformations

[Grayson, Audrey A]

***** Seminar *****
Center for Integrated Bio and Nano Systems
Houston Chapter of IEEE Nanotechnology Council and Houston Chapter of IEEE Magnetics Society
     Friday, October 16, 2015
12:30 p.m. (Refreshments served at 12:00 pm)
Room: W122 Eng. Bldg. 2

Metal Oxide Nanostructures for Electronics and Energy Applications: Endowing “Intelligence” through Phase Transformations

Sarbajit Banerjee
Department of Chemistry
Department of Materials Science & Engineering
Texas A&M University
Abstract:  Scaling ceramics and metals to nanoscale dimensions substantially alters their phase stabilities and phase diagrams with tremendous consequences for the manifestation of unique physical phenomena. Such new physical phenomena that oftentimes have no parallels in the bulk can be utilized to fabricate novel functional materials with applications for logic circuitry, "smart windows", photocatalysis, and electrochemical energy storage. In this talk, I will focus on our recent results on the influence of finite size and doping on the metal-insulator phase transitions of the binary vanadium oxide VO2. We have achieved substantial tunability of the critical transition temperature between -20 and 70°C through control of dimensionality, morphology, and dopant concentration in hydrothermally prepared single-crystalline VO2 nanostructures. The tunability of the phase diagram portends applications of these materials as dynamically switchable glazings for energy efficient windows (smart windows!). I will further discuss colossal metal—insulator switching recently discovered in MxV2O5 bronze phases, platforms for photocatalysis that exploit the tunabilty of the band structure within these compounds, and the interplay between structure and chemical bonding for intercalation of Li and Mg-ions within V2O5 and the implications therein for novel battery architectures.
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Bio of Dr. Banerjee:  Sarbajit Banerjee is a Professor of Chemistry and a Professor of Materials Science & Engineering at Texas A&M University. Sarbajit is a graduate of St. Stephen’s College (B.Sc.) and the State University of New York at Stony Brook (Ph.D.). He was a post-doctoral research scientist at the Nanoscale Science and Engineering Center and the Department of Applied Physics and Applied Mathematics at Columbia University prior to starting his independent career. He was awarded a National Science Foundation CAREER award in 2009, the American Chemical Society ExxonMobil Solid-State-Chemistry Fellowship in 2010, the Cottrell Scholar Award in 2011, the Minerals, Metals, and Materials Society Young Leader Award in 2013, the Journal of Physical Chemistry Lectureship in 2013, and was named a Scialog Innovation Fellow in 2013. In 2012, MIT Technology Review named Sarbajit to its global list of “Top 35 innovators under the age of 35” for the discovery of dynamically switchable smart window technologies that promise a dramatic reduction in the energy footprint of buildings. His research interests are focused on nanomaterials, solid-state chemistry, materials for energy storage and conservation, green buildings, and multifunctional coatings.

Contact Prof. Jiming Bao (jbao at UH.EDU<mailto:jbao at UH.EDU>)  if you would like to arrange for a time to meet with Dr. Banerjee.

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