Carbon-Bridged p-Phenylenevinylene Polymer for High-Performance Solution-Processed Distributed Feedback Lasers

Thin-film organic lasers are attractive light sources for a variety of applications. Recently, it is reported that carbon-bridged oligo(p-phenylenevinylene)s (COPVn with repeating unit n = 1–6) function as unique laser dyes which combine high fluorescence efficiency, wavelength tunability, and both the...

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Detalles Bibliográficos
Autores: Morales-Vidal, Marta, Quintana, José A., Villalvilla, José M., Boj, Pedro G., Nishioka, Hiroki, Tsuji, Hayato, Nakamura, Eiichi, Whitworth, Guy L., Turnbull, Graham A., Samuel, Ifor D. W., Díaz-García, María A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/146582
Acceso en línea:http://hdl.handle.net/10366/146582
Access Level:acceso abierto
Palabra clave:conjugated polymers
distributed feedback lasers
oligomer
organic semiconductors
Descripción
Sumario:Thin-film organic lasers are attractive light sources for a variety of applications. Recently, it is reported that carbon-bridged oligo(p-phenylenevinylene)s (COPVn with repeating unit n = 1–6) function as unique laser dyes which combine high fluorescence efficiency, wavelength tunability, and both thermal and photostability, making them ideal for use in organic semiconductor lasers. However, in order to obtain such excellent properties, COPVn require blending in a matrix, such as a thermoplastic polymer, thus leading to miscibility issues, limited absorption, and charge transporting properties. Here, high-performance lasers with a novel active polymer poly-COPV1, based on the basic unit of COPV1 and prepared as a high-quality neat film, are reported which overcome the trade-off between the device performance and durability. The prepared lasers show thresholds 30 times lower and operational lifetimes 300 times longer than devices based on COPV1 dispersed in polystyrene. The low threshold operation allows the poly-COPV1 lasers to be pumped by a nitride diode laser.

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