Functional organic materials based on conjugated system are a novel class of materials that combine the optical and electronic properties of semiconductors with processing advantages and mechanical properties of polymers. Research in the Jen group is focused on the development of new functional materials, the improvement of material processing and interfacial engineering, and the development of new concept for innovative organic based photovoltaic devices for power generation and white light emitting diode for efficient solid state lighting. Another focus area is to develop “transformative” electro-optic and all-optical materials and devices for light-weight, low driving power, and ultrahigh-speed information processing.