Hierarchical Self‐Assembly of Organic Core/Multi‐Shell Microwires for Trichromatic White‐Light Sources

• DOI: 10.1002/adma.202102719
• Publication Date: 2021-08-20T07:32:38Z
• Authors: Ming‐Peng Zhuo; Yang Su; Yang‐Kun Qu; Song Chen; Guang‐Peng He; Yi Yuan; Hao Liu; Yi‐Chen Tao; Xue‐Dong Wang; Liang‐Sheng Liao
• Keywords: Microscale chemistry

Abstract White‐light‐emissive organic micro/nanostructures hold exotic potential applications in full‐color displays, on‐chip wavelength‐division multiplexing, and backlights of portable display devices, but are rarely realized core/shell heterostructures. Herein, through regulating the noncovalent interactions between semiconductor molecules, a hierarchical self‐assembly approach horizontal epitaxial‐growth is demonstrated for fine synthesis core/mono‐shell microwires with multicolor emission (red–green, red–blue, green–blue) especially core/double‐shell radial red–green–blue (RGB) emission, whose components dibenzo[g,p]chrysene (DgpC)‐based charge‐transfer (CT) complexes. In fact, desired lattice mismatching (≈2%) excellent structure compatibility these CT complexes facilitate process facile microwires. With RGB‐emissive substructures, microscale white‐light sources (CIE [0.34, 0.36]). Besides, white‐emissive demonstrate fascinating full‐spectrum light transportation from 400 to 700 nm. This work indeed opens up novel avenue accurate construction heterostructures, which provides an attractive platform integrated optoelectronics.