Jeffery Lynn Gray (SM’11) received the B.S. degree in physics and mathematics from the University of Wisconsin, River Falls, WI, USA, in 1976 and the M.S.E.E. and Ph.D. degrees in electrical engineering from Purdue University,West Lafayette, IN, USA, in 1978 and 1982, respectively. He is currently an Associate Professor of electrical and computer engineering and serves as the Undergraduate Coordinator for the School of Electrical and Computer Engineering, Purdue University. He specializes in the modeling of photovoltaic devices and systems. He has authored or coauthored more than 90 journal and conference papers.