Influence of Blending Ratio and Polymer Matrix on the Lasing Properties of Perylenediimide Dyes

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Title: Influence of Blending Ratio and Polymer Matrix on the Lasing Properties of Perylenediimide Dyes
Authors: Muñoz-Mármol, Rafael | Zink-Lorre, Nathalie | Villalvilla Soria, José Moisés | Boj Giménez, Pedro | Quintana Arévalo, José Antonio | Vázquez Ferri, Carmen | Anderson, Alec | Gordon, Michael J. | Sastre Santos, Ángela | Fernández Lázaro, Fernando | Díaz-García, María A.
Research Group/s: Física de la Materia Condensada | Óptica y Ciencias de la Visión
Center, Department or Service: Universidad de Alicante. Departamento de Física Aplicada | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Blending ratio | Polymer matrix | Lasing properties | Perylenediimide dyes
Knowledge Area: Física Aplicada | Óptica | Física de la Materia Condensada
Issue Date: 11-Oct-2018
Publisher: American Chemical Society
Citation: The Journal of Physical Chemistry C. 2018, 122(43): 24896-24906. doi:10.1021/acs.jpcc.8b06925
Abstract: Perylenediimide (PDI) dyes dispersed in polymer films have demonstrated great success as active materials in thin-film organic lasers (TFOLs). The type of matrix used to host the dye and the dye doping rate are both crucial parameters to optimize laser performance. This work reports the study of two soluble PDIs, the comercial derivative perylene orange (PDI-O) emitting at around 580 nm, and a new dye (b-PDI-A) with substituents at the 1,7 bay positions of the PDI core emitting at around 620 nm, dispersed at different doping levels (up to 8 and 50 wt %, for PDI-O and b-PDI-A, respectively) in two widely used polymers for optoelectronics, polystyrene (PS) and poly(methyl methacrylate) (PMMA). The main goal is to determine which of these two polymers, and at which dye concentration, provides the best results for their use in TFOLs. The assessment of the active materials has been carried out through the analysis of their absorption, photoluminescence, and amplified spontaneous emission (ASE) properties. Their capability to form high-quality optical waveguides has also been studied by determining gain coefficients and waveguide losses. Results have shown that for both types of PDI derivatives PS is better than PMMA at any concentration, which means larger photoluminescence efficiency, lower ASE thresholds, longer ASE operational lifetimes, larger gain, and lower propagation waveguide losses. In addition, the onset concentration at which dye aggregation becomes significant as to negatively affect the optical properties is lower in PMMA than in PS; thus, the larger the blending ratio, the larger the superiority of PS with respect to PMMA is.
Sponsor: Financial support from Spanish Ministerio de Economía y Competitividad (MINECO) and the European FEDER funds through Grants MAT2015-66586-R and CTQ2016-77039-R (AEI/FEDER, UE) is gratefully acknowledged. R.M-M is supported by a MINECO FPI contract (no. BES-2016-077681). M.A.D-G acknowledges support from the University of Alicante and to the Spanish Ministry of Education (grant no. PR2015-00390) to perform a sabbatical stay at UCSB.
ISSN: 1932-7447 (Print) | 1932-7455 (Online)
DOI: 10.1021/acs.jpcc.8b06925
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 American Chemical Society
Peer Review: si
Publisher version:
Appears in Collections:INV - IMAOS+V - Artículos de Revistas
INV - Física de la Materia Condensada - Artículos de Revistas

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