In:
Angewandte Chemie, Wiley, Vol. 135, No. 12 ( 2023-03-13)
Abstract:
Carbon dots (CDs) find widespread attention due to their remarkable fluorescent and electronic properties. However, aggregation‐caused quenching currently limits the application of CDs in colored displays. The construction of CDs with color‐tunable solid‐state fluorescence (SSF) is rarely reported, since the preparation of SSF CDs is technically challenging. Herein, through surface ligand modulation, SSF CDs with an emission‐color span of almost 300 nm (from blue to deep red) were obtained. In‐depth structure‐property studies reveal that intra‐ and inter‐molecular hydrogen‐bonding inside SSF CDs provokes the emission properties in the aggregated state. Photodynamic characterizations demonstrate emission wavelengths can be switched smoothly by deliberately altering conjugation ability between substituent ligands and CDs core. Three‐dimensional printing patterning is used to create a range of emissive objects, demonstrating the commercial potential for use in optical lamps.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v135.12
DOI:
10.1002/ange.202217822
Language:
English
Publisher:
Wiley
Publication Date:
2023
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