Hierarchical self-assembly of organic heterostructure nanowires.
basic_science · Level V
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- Record sourced from PubMed, PMID 31451699.
- Also identified by DOI 10.1038/s41467-019-11731-7 and PMC identifier 6710268.
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Abstract
Organic heterostructures (OHSs) integrating the intrinsic heterostructure characters as well as the organic semiconductor properties have attracted intensive attention in material chemistry. However, the precise bottom-up synthesis of OHSs is still challenging owing to the general occurrence of homogeneous-nucleation and the difficult manipulation of noncovalent interactions. Herein, we present the rational synthesis of the longitudinally/horizontally-epitaxial growth of one-dimensional OHSs including triblock and core/shell nanowires with quantitatively-manipulated microstructure via a hierarchical self-assembly method by regulating the noncovalent interactions: hydrogen bond (-15.66 kcal mol<sup>-1</sup>) > halogen bond (-4.90 kcal mol<sup>-1</sup>) > π-π interaction (-0.09 kcal mol<sup>-1</sup>). In the facet-selective epitaxial growth strategy, the lattice-matching and the surface-interface energy balance respectively facilitate the realization of triblock and core/shell heterostructures. This hierarchical self-assembly approach opens up avenues to the fine synthesis of OHSs. We foresee application possibilities in integrated optoelectronics, such as the nanoscale multiple input/out optical logic gate with high-fidelity signal.