Reliable and Efficient of UV-absorbing Hexabenzocoronene Derivative Organic Solar Cells
Organic photovoltaic cells are an emerging solar cell technology with the potential to be inexpensive, thin, and flexible. Their unique properties are particularly appealing for integration into windows, since certain devices can be made to selectively absorb ultraviolet or infrared illumination while remaining transparent to visible light. One of the biggest remaining challenges for organic photovoltaics is their operational stability under solar illumination, as lifetimes of more than 15 years are required for most practical applications. We propose to study the reliability of a recently developed class of ultraviolet-absorbing organic solar cells based on hexabenzocoronene derivatives to determine the most active photochemical and morphological degradation modes. Based on these results, we will then develop chemically modified materials and novel device architectures which stabilize device performance while maintaining high efficiency and visible transparency.
Arnold O. Beckman exemplifies the meaning of the word humanitarian. Combined with his unwavering enthusiasm for life, his keen sense of humor and his strong moral and ethical principles, he is a national icon.