Professor Eray S. Aydil is the Alstadt Lord Mark Professor at New York University (2018-present). Until September 2018, he was the Ronald L. and Janet A. Christenson Chair in Renewable Energy in the Department of Chemical Engineering and Materials Science at the University of Minnesota (2005-2018). Prior to Minnesota he was a postdoctoral member of Technical Staff at Bell Labs until 1993 and a Professor of Chemical Engineering at the University of California Santa Barbara until 2005. He received his B.S. degrees in chemical engineering and in materials science, both from U. C. Berkeley in 1986. He received his Ph.D. degree in chemical engineering in 1991 from the University of Houston. His research interests range from plasma science and technology and thin films to nanomaterials and photovoltaics. A major focus is improving the efficiency of solar cells and lowering the cost of electricity production from sunlight. He has published over 190 articles and holds 7 patents. He is the Editor-in-Chief of the Journal of Vacuum Science and Technology.