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Charge Transport Orthogonality in All-Polymer Blend Transistors, Diodes, and Solar Cells

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Abstract

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Polymer aggregation and phase separation of polymer–polymer blends are effectively tuned from self-stratified to laterally phase-separated by adjusting the relative solubility of the two polymers in the mixture. This is found to dramatically alter the charge transport characteristics from a preferential in-plane to an out-of-plane direction, revealing the critical dependence of the resulting device performance on the film morphology and structure of the active layer.

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