Sean Shaheen, Ph.D., is an associate professor of Electrical, Computer, and Energy Engineering at CU-Boulder. His research interests focus on organic photovoltaic (OPV) devices for low-cost, renewable energy harvesting. His group and collaborators engage in a wide range of activities in OPV research, including studying fundamental aspects of energy transfer and exciton dynamics, measurements of charge transport and recombination behavior, and modeling of device physics using various numerical techniques. More broadly, he is interested in renewable energy from a global perspective and in applying concepts from complex systems science and engineering to emergent problems in sustainability. Shaheen works closely with staff scientists at the National Renewable Energy Laboratory, where he was previously employed, and he is a Scialog Fellow of the Research Corporation for Science Advancement.