SCIENCE AT THE EDGE SEMINAR SERIES Engineering Seminar Friday, 17 February 2012 at 11:30am Room 1400 Biomedical and Physical Sciences Bldg. Refreshments at 11:15 Speaker: Liang-shi Li Department of Chemistry, Indiana University Title: Colloidal Graphene Quantum Dots - A New Type of Carbon Materials toward Energy Applications Abstract: Burning of carbon-rich substances (such as coal) has been a major source of energy we use today. It not only depletes resources but also adversely impact the environment. We have been exploring renewable ways to use carbon for energy with the colloidal graphene quantum dots (QDs) we recently developed. In my talk I will talk about synthesis of the graphene QDs and tuning of their electronic and optical properties for applications in solar cells. I will also discuss interesting photophysical phenomena observed in the QDs, and their uses as a model system to understand processes in heterogeneous catalysis. Bio: Liang-shi Li obtained his B.S. and M.S. degrees at the University of Science and Technology of China. After finishing his Ph.D. in Physical Chemistry at the University of California, Berkeley and postdoctoral training in Organic Chemistry at Northwestern University, he joined Indiana University as an assistant professor of Chemistry in 2006. He is interested in chemistry and physics of carbon-rich materials and their applications in renewable energy and neurosciences.