Exploring Axial Organic Multiblock Heterostructure Nanowires: Advances in Molecular Design, Synthesis, and Functional Applications

Abstract

Organic multiblock heterostructure nanowires (OMHNs), integrating distinct components in the same axial structure, have attracted much attention due to their excellent properties such as intrinsic good light confinement and rectification characteristics. However, rationally incorporating such features into OMHNs with rigorous 1D morphology control remains a key synthetic objective. It is because that the single components possess fundamentally distinctive properties such as size-dependent electronic, optical, and magnetic features as well as lattice parameters. In the last decade, researchers made their own efforts to this exciting field, especially from the controlled fabrication to the advanced applications of the multiblock nanowires. As a result, various OMHNs have been developed as very promising candidates for highperformance optoelectronic applications such as light harvesting, logic gate devices, photonic transistors, and photonic anticounterfeiting. Herein, the recent advances of OMHNs from the aspects of molecular design, synthesis, and advanced applications are reviewed, and an outlook is given providing inspiration for the future development of OMHNs toward integrated optoelectronic at nanoscale.

Pathway Complexity in Supramolecular Copolymerization and Blocky Star Copolymers by a Hetero-Seeding Effect

“…In recent years, there has been a surge in the interest in the field of supramolecular polymers of π-conjugated systems, which are foreseen as emerging functional organic materials for their intriguing internal ordering, attractive photophysical properties, and stimuli-responsiveness on account of their reversible bonding nature. Despite this, achieving precise microstructural control in multicomponent supramolecular polymers remains a challenging task due to the very fast dynamics of monomer exchange, unlike their sequence-controlled covalent copolymer analogues .…”

Magnetically controlled assembly: a new approach to organic integrated photonics

“…1d and e). These strategies allow the assembly of a wide range of simple low-dimensional nanomaterials into complex heterostructures with high spatial and angular accuracy, such as 1D axial heterostructures, [58][59][60] dendritic heterostructures, 61 embedded heterostructures, 62 core/sheath heterostructures, [63][64][65] and multi-bent junctions. 66,67 Rational coupling of lowdimensional nanostructures into heterostructures not only effectively preserves their respective features, but also generates novel photonic properties due to charge and energy transfer at the coupling interface.…”

Optical Control of Aggregation‐Induced Emission Shift by Photoisomerizable Precipitant in a Liquid Droplet Microresonator

“…Unlike conventional fluorophores that show aggregation-caused quenching (ACQ), aggregation-induced emission (AIE) process has been discovered by Tang's group, [1] in which been exploited for their potential applications, such as multicolor laser, [23][24][25][26] biological or chemical sensing, [27][28][29][30] information encryption, [31][32][33] and integrated optics. [34,35] As a promising platform to enhance the light-matter interaction, the detailed information about the optical cavity and gain medium inside can be easily characterized by recording the resonant spectrum. [36] A few liquid-based tunable microresonators have been reported, whose resonant peak shift is induced by mechanical deformation or changing the refractive index (RI).…”