David L. Allara is a Distinguished Professor Emeritus in the departments of Chemistry and Materials Science and Engineering at Pennsylvania State University. In 1969, he joined the technical staff at Bell Laboratories and became a research manager at Bell Communications Research in 1984. He joined Penn State in 1987. Among his awards, Allara has received the Arthur Adamson Award from the American Chemical Society, an Honorary Doctorate of Science from Linkoping University, and he is a Fellow of The American Association for The Advancement of Science (AAAS). Robert L. Opila is a Professor in the Materials Science Department at the University of Delaware. He joined Bell Laboratories, where he studied the role of surfaces and interfaces in electronic and photonic materials and devices. He was named Distinguished Member of Technical Staff and promoted to Technical Supervisor. He joined the University of Delaware in 2002 and his research now includes photovoltaic and thermoelectric materials as well as semiconductor processing. Opila is a Fellow of the American Vacuum Society and an editor of Applied Surface Science, and has completed terms as Fulbright Fellow at Bilkent University in Turkey, and as Visiting Professorial Fellow at the University of New South Wales.