Synthesis, Characterization and Optoelectronic Properties of Oligo(p-Phenylenvinylidenequinolines) with Different Substituents

Justo Fabián Montiel Hernández; Pedro García Bernal; Rosa Angeles Vázquez García; Armando Irvin Martínez Pérez; José Luis Maldonado; Juan Coreño Alonso; Oscar Coreño Alonso

doi:10.4028/www.scientific.net/AMR.976.80

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 976Synthesis, Characterization and Optoelectronic...

Synthesis, Characterization and Optoelectronic Properties of Oligo(p-Phenylenvinylidenequinolines) with Different Substituents

Abstract:

2,2'–(2,5-bisoctyloxy-1,4-phenylenvinylidene)bis-8-acetoxyquinoline (TrimQ1), 2,2’-(2,5-bisoctyloxy-1,4-phenylendivinylene)bis-6-bromoquinoline (TrimQ2) 2,2'–(2,5-bisoctyloxy-1,4-phenylendivinylene)bis(8-acetoxy-5,7-dichloro)quinoline (TrimQ3), were synthesized and characterized by different spectroscopic methods. The fluorescent properties of these bisphenylenvinylenquinoline oligomers were analyzed by fluorescence spectroscopy and then the quantum yields were calculated. The order of light emitting properties: (TrimQ3) (quantum yield, 75%) > (TrimQ2) (quantum yield, 21% ) > (TrimQ1) (quantum yield, 5%), showing that TrimQ3 is more suitable for OLED construction than other compounds. Thin films were prepared by spin coating from concentrated solutions of the compounds using a polystyrene (PS) matrix on glass. Prototypes of diodes were fabricated using ITO/organic film/In-Ga a configuration. For all the devices, electroluminescence properties also were analyzed through applying a voltage larger than 8 V and a current of 4 mA.

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Periodical:

Advanced Materials Research (Volume 976)

Pages:

80-85

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.976.80

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Online since:

June 2014

Authors:

Justo Fabián Montiel Hernández, Pedro García Bernal, Rosa Angeles Vázquez García*, Armando Irvin Martínez Pérez, José Luis Maldonado, Juan Coreño Alonso, Oscar Coreño Alonso

Keywords:

Diode, Electroluminescence, Oligo(p-phenylenvinylidenes), Quantum Yield

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