Journal Article epitaxial growth organic cocrystals 7782-42-5 Graphite Oxides Research Support, Non-U.S. Gov't bilayer heterostructures bioinspired charge-transfer interactions core/shell structures dynamic self-assembly energy transfer exciton conversion fibers graphene low toxicity near-infrared emitters optical interconnects organic crystals passivation perovskite solar cells photon transportation photonic barcode polarized exciton conversion segregated stacking modes selective heterogeneous nucleation solid-state lighting sources synergistic ternary perovskite