Organic droplet epitaxy is presented as a method for growing nanopatterned crystalline heterostructures, thanks to the transport of molecules of an amorphous first-layer on top of a crystalline second-layer, where they form an epitaxial interface. Such heterostructures may be transferred to any substrates, raising particular interest for applications (e.g., for organic photovoltaics), where crystallinity and nanopatterning constitute well recognized advantages.
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