In this paper, time-resolved PL, lifetime and crystallization of a novel organic, 2,8-di(t-butyl)-5,11-di[4(t-butyl)phenyl]-6,12-diphenylnaphthacene, which is considered to be potential candidate to substitute the conventionally used 5,6,11,12-tetraphenylnaphthacene for a higher efficient yellow-color organic LED, were investigated. The PL intensity will reduce when the irradiation time increases because of photo-quenching. It is shown that oxidation is the dominant reason for photo-quenching. In addition, TBRb has two lifetimes. The short one is /spl sim/5 ns and the long one is /spl sim/31 ns. They are considerably contributed by the short PL peak and long PL peak respectively. Furthermore, we first report, to the best knowledge, crystallization of TBRb at low temperature of 11 K and with irradiation.


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    Title :

    Optical properties of a novel dye in yellow fluorescent organic LEDs


    Contributors:
    Choy, W.C.H. (author) / Cheah, K.W. (author) / Wu, Y.S. (author) / Chen, C.H. (author)


    Publication date :

    2003-01-01


    Size :

    91482 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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