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Synthesis of zigzag- and fjord-edged nanographene with dual amplified spontaneous emission.

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.

SUBMITTER: Xu X

PROVIDER: S-EPMC9667923 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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Synthesis of zigzag- and fjord-edged nanographene with dual amplified spontaneous emission.

Xu Xiushang X Serra Gianluca G Villa Andrea A Muñoz-Mármol Rafael R Vasylevskyi Serhii S Gadea Marcos M Lucotti Andrea A Lin Zensen Z Boj Pedro G PG Kabe Ryota R Tommasini Matteo M Díaz-García María Á MÁ Scotognella Francesco F Paternò Giuseppe Maria GM Narita Akimitsu A

Chemical science 20221018 44

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, indic ...[more]

PMID: 36425485

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