Maximum efficiency in photovoltaic devices demands structures <10 nm in size, on the length scale of exciton diffusion. High ? block copolymers can self-assemble into such structures, but they do so slowly and require solvent treatment. New polymer materials and processes that, for the first time, enable the self-assembly of high ? block copolymers by thermal annealing will be reported. In some cases, alignment can be achieved in tens of seconds, making the process compatible with roll to roll manufacturing.

Block copolymer nanostructures for roll to roll manufacturing of photovoltaic devices

245th National Meeting (2013)

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