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Colloidal Quantum Dot Arrangement Assisted by Perylene Bisimide Self‐Assembly
Author(s) -
Yamauchi Mitsuaki,
Masuo Sadahiro
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201805119
Subject(s) - perylene , supramolecular chemistry , quantum dot , self assembly , nanomaterials , nanotechnology , materials science , nanocrystal , nanostructure , colloid , semiconductor , chemistry , optoelectronics , molecule , organic chemistry
Colloidal semiconductor nanocrystals, so‐called quantum dots (QDs), are attractive as molecular‐like smart nanomaterials, and their emission and optoelectronic properties in the dispersed state have been actively studied. The construction of supramolecular structures composed of multiple QDs, however, is still challenging. Here, a new strategy to form supramolecular QD structures via self‐assembly of perylene bisimide (PBI) dyes is demonstrated. In a mixed solution, QDs and PBI undergo time‐dependent fusion to form an isolated colloidal QD‐PBI complex or a unique QD‐PBI co‐aggregate composed of QDs arranged along a sheet‐like PBI nanostructure, and these dramatically different supramolecular structures can be controlled by the solvent polarity.