Dr. Ganesh Balasubramanian, Lehigh University
Transport properties and stability of two-dimensional organic-inorganic halide perovskites
ABSTRACT. Organic-inorganic halide perovskites, which have sparked a substantial interest due to their excellent photovoltaic properties, have also been synthesized in stable two-dimensional forms. The reduction in dimension promises an exciting opportunity to tune the transport properties of these functional materials. Here, we share findings from first principle calculations of various engineered two-dimensional hybrid organic-inorganic halide perovskite structures. While on one hand, the structures possess excellent transport properties similar to their bulk counterparts, on the other hand, the reduced dimensionality offers the advantage of tuning the band gaps over a broad range. In addition, by doping these two-dimensional materials, we are able to control transport properties and material stability. Our efforts are directed towards employing computational sciences for engineering designer perovskites with tailored properties.
BIO. Ganesh Balasubramanian is an Assistant Professor of Mechanical Engineering & Mechanics at Lehigh University. Previously, he was an Assistant Professor of Mechanical Engineering and (by courtesy) of Materials Science and Engineering at Iowa State University. He received his BME degree in Mechanical Engineering from Jadavpur University (India) in 2007, his PhD in Engineering Mechanics from Virginia Tech in 2011, and was a postdoctoral research associate in Theoretical Physical Chemistry at TU Darmstadt (Germany) till fall of 2012. His research and teaching interests are in advanced energy and structural materials, nanoscale transport and mechanics, and multi-scale engineering. Some of his recognitions include the ASEE Outstanding New ME Educator award, AFRL Summer Faculty Fellowship, ISU Miller Faculty Fellowship, Graduate Man of the Year and Liviu Librescu Scholarship at Virginia Tech, and Young Engineering Fellowship from the Indian Institute of Science.
Hosted by Dr. Deepa Madan