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Photoinduced Self-Assembly of Carbon Nitride Quantum Dots. | LitMetric

Photoinduced Self-Assembly of Carbon Nitride Quantum Dots.

Angew Chem Int Ed Engl

Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion city, Haifa, Israel.

Published: August 2021

AI Article Synopsis

Article Abstract

The study of nanocrystal self-assembly into superlattices or superstructures is of great significance in nanoscience. Carbon nitride quantum dots (CNQDs), being a promising new group of nanomaterials, however, have hardly been explored in their self-organizing behavior. Here we report of a unique irradiation-triggered self-assembly and recrystallization phenomenon of crystalline CNQDs (c-CNQDs) terminated by abundant oxygen-containing groups. Unlike the conventional self-assembly of nanocrystals into ordered superstructures, the photoinduced self-assembly of c-CNQDs resembles a "click reaction" process of macromolecules, in which the activated -OH and -NH functional groups along the perimeters initiate cross-linking of adjacent QDs through a photocatalytic effect. Our findings unveil fundamental physiochemical features of CNQDs and open up new possibilities of manipulating carbon nitride nanomaterials via controlled assembly. Prospects for potential applications are discussed as well.

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Source
http://dx.doi.org/10.1002/anie.202107079DOI Listing

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