Frontiers in Chemistry Over the past 15 years, new technologically and biologically important developments of broad industrial and societal interest have resulted from cutting-edge research, namely in photonics, displays, and biological labeling. This session is designed to allow a diverse audience to learn about state-of-the-art research in the area of functional pi-systems. The focus will be largely, but not exclusively, on the chemistry of such materials. In doing so, the session will provide a critical forum where participants can discuss not only fundamental aspects of the chemistry and physics of functional pi-systems, but also the technology drivers and biologically important applications. The latter are often neglected at more specialized conferences on displays, organic photovoltaics, or nonlinear optics. Topics to be covered include organic semiconductor materials, photovoltaic organic materials and devices, organic electroactive materials and devices, self-assembly and aggregation of organic materials, and nonlinear optics and two-photon processes in organic materials.