Yaohua Tan joined VINO as Postdoc since 2016. He received his PhD at Purdue University 2015. His current interests include quantum transport studies and applications of graphene PN junctions; spin transport phenomena and possible applications in Topological insulators. He was working on tight binding parameterization from ab-initio calculations for his PhD. He develop an efficient technique of extracting transferable tight binding parameters from ab-initio calculations. This technique was applied to multiple materials.