Y. Zhang, Y Diao, H Lee, T. Mirabito, R. Johnson, E. Puodziukynaite, J. John, K. Carter, T. Emrick, S. Mannsfeld, A Briseno.
The Briseno Group and collaborators have reported on the most efficient architecture for achieving high donor/acceptor interfacial area in organic photovoltaics (OPVs). The team crystallized vertically interdigitated p- and n- type semiconductor nanopillars on graphene. Devices show a power conversion efficiency of 32% over thin-film counterpart devices. This technique will advance the knowledge of organic semiconductor crystallization and create opportunities for the fabrication and processing of NPs for applications that include solar cells, charge storage devices, sensors, and vertical transistors.