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Dissertation
Towards Small-Molecule Organic Photovoltaics
(2018-09-03)
Morphology plays a significant role in the research field of organic photovoltaics. In particular, the device performance and efficiency of bulk-heterojunction organic solar cells, relying on the concept of phase-separated donor and acceptor active layers, is strongly affected by morphology. The low dielectric numbers of organic functional materials lead to strong exciton binding energies and short diffusion path lengths therefore demanding an active layer with a bicontinuous interpenetrating donor-acceptor network ...