Synthesis of zigzag- and fjord-edged nanographene with dual amplified spontaneous emission.
Chem Sci
; 13(44): 13040-13045, 2022 Nov 16.
Article
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| ID: mdl-36425485
ABSTRACT
We report the synthesis of a dibenzodinaphthocoronene (DBDNC) derivative as a novel nanographene with armchair, zigzag, and fjord edges, which was characterized by NMR and X-ray crystallography as well as infrared (IR) and Raman spectroscopies. Ultrafast transient absorption (TA) spectroscopy revealed the presence of stimulated emission signals at 655 nm and 710 nm with a relatively long lifetime, which resulted in dual amplified spontaneous emission (ASE) bands under ns-pulsed excitation, indicating the promise of DBNDC as a near-infrared (NIR) fluorophore for photonics. Our results provide new insight into the design of nanographene with intriguing optical properties by incorporating fjord edges.
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MEDLINE
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En
Revista:
Chem Sci
Ano de publicação:
2022
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Article