Chris G. Van de Walle is a Professor in the Materials Department at the University of California, Santa Barbara. He received a Ph.D. in Electrical Engineering from Stanford University in 1986. Prior to joining UCSB in 2004, he was a Principal Scientist at the Xerox Palo Alto Research Center (PARC). His research interests include first-principles calculations for materials, defects and doping in semiconductors and oxides, surfaces and interfaces, and the physics of hydrogen in materials. Van de Walle is a Fellow of the APS, MRS, AAAS, AVS, and IEEE. He is the recipient of a Humboldt Research Award for Senior US Scientist, the Medard W. Welch Award, and the from the APS.