Photoconversion of Solar Energy
Organic Photovoltaics

We have developed several approaches to self-assembling chromophore arrays that carry out energy and electron transfer. The goal is to design molecular arrays that adopt the correct orientations and interactions between molecules to promote quantitative photoinduced charge separation in the solid and long distance charge migration leading to charge collection at electrodes. Organic photovoltaics hold the promise of cheap, processible systems that can be readily produced using simple technologies, such as printing. The molecules shown in Figure 1 have been designed for both electron and energy transfer. For further information see the references given above.

We have recently developed self-assembling n-type materials from easily reduced building blocks. These materials form fibers in the solid state. Solar spectrum coverage is high as indicated in Figure 2.

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