Near-Infrared Lasing in Four-Zigzag Edged Nanographenes by 1D versus 2D Electronic π-Conjugation
| Autor: | Amel Derradji, Víctor Bonal, Jishan Wu, Francesco Scotognella, Pedro G. Boj, Fernando Gordillo, Giuseppe M. Paternò, Guglielmo Lanzani, Yanwei Gu, José M. Villalvilla, José A. Quintana, María A. Díaz-García, Juan C. Sancho-García, Rafael Muñoz-Mármol, Juan Casado, Aaron M. Ross |
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| Přispěvatelé: | Universidad de Alicante. Departamento de Física Aplicada, Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante. Departamento de Química Física, Universidad de Alicante. Instituto Universitario de Materiales, Física de la Materia Condensada, Química Cuántica |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
nanographene
Materials science Física de la Materia Condensada European Regional Development Fund Peri-acenoacene Library science 02 engineering and technology 7. Clean energy 01 natural sciences near-infrared distributed feedback laser Biomaterials Near-infrared Π conjugation Electrochemistry Organic lasers media_common.cataloged_instance Distributed feedback laser peri-acenoacene Química Física European union media_common Óptica 010405 organic chemistry European research 021001 nanoscience & nanotechnology Condensed Matter Physics organic lasers 0104 chemical sciences Electronic Optical and Magnetic Materials dual amplified spontaneous emission 0210 nano-technology Dual amplified spontaneous emission Nanographene |
| Zdroj: | RUA. Repositorio Institucional de la Universidad de Alicante Universidad de Alicante (UA) Advanced Functional Materials |
| Popis: | The search of compounds emitting in the near-infrared (NIR) has been accelerated owing to their use in biomedical and telecommunications applications. In this regard, nanographenes (NGs) are attractive materials adequate for integration with other technologies, which have recently demonstrated amplified spontaneous emission (ASE) and lasing across the visible spectrum. Here, the optical and ASE properties of four-zigzag edged NGs of the [m,n]peri-acenoacene family are reported, whose size is increased through conjugation extension by varying n (from 3 to 5) while keeping m = 2. Results show that such 1D conjugation extension method is more efficient in terms of shifting the photoluminescence (PL) to the infrared (PL at 710 nm in the larger compound, PP-Ar) than through 2D conjugation extension as in previously reported NGs (PL at 676 nm with the largest compound FZ3, with n = 3 and m = 4). Additionally, PP-Ar shows dual-ASE (at 726 and 787 nm), whose origin is elucidated through Raman and transient absorption spectroscopies. These compounds’ potential for red and NIR lasing is demonstrated through the fabrication of distributed feedback lasers with top-layer resonators. This study paves the way towards the development of stable low-cost all-plastic NIR lasers. The authors acknowledge financial support from the “Ministerio de Ciencia, Innovación y Universidades” of Spain, European Regional Development Fund and European Social Funds (MAT2015-66586-R, PDI2019-106114GB-I00, BES-2016-077681, PGC2018-098533-B-100 and RED2018-102815-T). J.C. thanks the Junta de Andalucía of Spain (UMA18FEDERJA057). The authors also thank the Research Central Services (SCAI) of the University of Málaga. F.G. acknowledges the Spanish Government for an FPI grant. G.M.P. thanks Fondazione Cariplo (grant no 2018-0979) for the financial support. J.W. acknowledges the “Agency for Science, Technology and Research of Singapore” for financial support from A*STAR AME grant (A20E5c0089). A.M.R. and F.S. have received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No. [816313]). |
| Databáze: | OpenAIRE |
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