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

Xiushang Xu; Gianluca Serra; Andrea Villa; Rafael Muñoz-Mármol; Serhii Vasylevskyi; Marcos Gadea; Andrea Lucotti; Zensen Lin; Pedro G. Boj; Ryota Kabe; Matteo Tommasini; María Á. Díaz-García; Francesco Scotognella; Giuseppe Maria Paternò; Akimitsu Narita

doi:10.1039/D2SC04208H

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

Xiushang Xu,^ab Gianluca Serra,^c Andrea Villa,^d Rafael Muñoz-Mármol,

^d Serhii Vasylevskyi,

^e Marcos Gadea,^f Andrea Lucotti,

^c Zensen Lin,

^g Pedro G. Boj,^h Ryota Kabe,

^g Matteo Tommasini,

^c María Á. Díaz-García,

^f Francesco Scotognella,

^d Giuseppe Maria Paternò

*^d and Akimitsu Narita

*^ab

Author affiliations

* Corresponding authors

^a Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
E-mail: akimitsu.narita@oist.jp

^b Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany

^c Dipartimento di Chimica, Materiali e Ingegneria Chimica ‘G. Natta’, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy

^d Physics Department, Politecnico di Milano, Piazza L. da Vinci 32, Milano 20133, Italy
E-mail: giuseppemaria.paterno@polimi.it

^e Engineering Section, Research Support Division, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan

^f Departamento de Física Aplicada and Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante 03080, Spain

^g Organic Optoelectronic Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan

^h Departamento de Óptica, Farmacología y Anatomía and Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante 03080, Spain

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.

Chemical Science

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

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

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