Large?Area Heteroepitaxial Nanostructuring of Molecular Semiconductor Films for Enhanced Optoelectronic Response in Flexible Electronics

Organized nano- and microstructures of molecular semiconductors display interesting optical photonic properties, enhanced charge carrier mobilities, as compared to disordered thin films. However, known directed-growth self-organization strategies cannot create structured heterojunctions be practically incorporated into existing device fabrication routines large-area optoelectronic devices. Here, an ultrathin (<2 nm) seed layer the compound coronene creates 1D nanostructures electron-transporting molecule (IFD) is shown, which possesses intrinsic proclivity form films in absence layer. It revealed that nanostructured IFD exhibit light absorption emission, greater electron amorphous counterparts. This strategy uniform nanowires over large areas up 18 mm2 at low processing temperatures. Notably, when applied either oxide surfaces or predeposited organic layers, meaning this structuring approach can integrated diode manufacturing realize flexible Flexible light-emitting diodes fullerene-free solar cells containing photoactive demonstrate lead robust, arrays on substrates being fabricated.