Design, synthesis and amplified spontaneous emission of 1,2,5-benzothiadiazole derivatives

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Title: Design, synthesis and amplified spontaneous emission of 1,2,5-benzothiadiazole derivatives
Authors: Martín, Raúl | Prieto, Pilar | Carrillo, José R. | Rodríguez, Ana M. | Cózar Ruano, Abel de | Boj Giménez, Pedro | Díaz-García, María A. | Ramirez, Manuel G.
Research Group/s: Física de la Materia Condensada | Holografía y Procesado Óptico
Center, Department or Service: Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | Universidad de Alicante. Departamento de Física Aplicada | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Amplified spontaneous emission | 1,2,5-benzothiadiazole derivatives | Potential laser applications
Knowledge Area: Óptica | Física de la Materia Condensada | Física Aplicada
Issue Date: 1-Aug-2019
Publisher: Royal Society of Chemistry
Citation: Journal of Materials Chemistry C. 2019, 7: 9996-10007. doi:10.1039/C9TC03148K
Abstract: The design, synthesis and evaluation of the amplified spontaneous emission (ASE) properties of a series of arylalkynyl-benzo[c][1,2,5]thiadiazole (BTD) and [1,2,5]thiadiazolo[3,4-g]quinoxaline (TDQ) derivatives are described. The synthetic strategy entailed the use of Sonogashira and Stille reactions based on the different aromatic natures of the two cores. The ASE properties were measured in thin polystyrene (PS) films doped with different concentrations of the synthesised compounds. BTD derivatives showed narrowing of the photoluminescence spectra (PL), thus revealing their potential laser applications. Only one TDQ derivative showed ASE. X-ray diffraction analysis was carried out to understand the observed results and to establish structure–property relationships. Molecules that showed strong molecular packing quenched the PL emission, thus giving rise to higher ASE thresholds. This is the first study in which ASE has been studied in BTD and TDQ derivatives and it represents a step forward in understanding this class of compounds for laser applications.
Sponsor: The Alicante team acknowledges support from Ministerio de Ciencia, Innovación y Universidades, Spain, under projects MAT2015-66586-R (MINECO/FEDER), FIS2017-82919-R (MINECO/AEI/FEDER,UE) and FIS2015-66570-P (MINECO/FEDER). The authors acknowledge financial support from the Junta de Comunidades de Castilla-La Mancha (JCCM-FEDER) (project SBPLY/17/180501/000189), the Spanish Ministry of Economy and Competitiveness (CTQ2013-45415P) and Gobierno Vasco-Eusko Jaularitza (IT-673-13). R. Martı´n is grateful to the MEC for an FPU studentship.
ISSN: 2050-7526
DOI: 10.1039/C9TC03148K
Language: eng
Type: info:eu-repo/semantics/article
Rights: © The Royal Society of Chemistry 2019
Peer Review: si
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Appears in Collections:INV - Física de la Materia Condensada - Artículos de Revistas
INV - GHPO - Artículos de Revistas

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