Intense ultra-violet photoluminescence at 380 nm (3.26 eV) was observed from a small organic molecule, (4'-methoxy)-9-phenylcarbazole (MeOKPA) at room temperature. The intensity is at least three times of that of Alq/sub 3/, which is most widely used for organic LED application. Excitation spectrum and low temperature photoluminescence (PL) results show that the shortest emission is at 360 nm (3.44 eV). The small stoke shift of 180 meV from excitation to emission indicates that the radiative recombination of MeOKPA is extremely efficient and the compound is robust over a wide temperature range. Moreover, it also has strong upconversion efficiency. Its upconversion PL is a little different from normal PL. The result indicates that it is a strong candidate as organic laser.


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    Title :

    Sub-400 nm ultra-violet luminescence of (4'-methoxy)-9-phenylcarbazole


    Contributors:
    Li, K.F. (author) / Luo, L. (author) / Leung, L.M.L. (author) / Cheah, K.W. (author)


    Publication date :

    2003-01-01


    Size :

    78411 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Sub-400 nm ultra-violet luminescence of (4'-methoxy)-9-phenylcarbazole

    Lia, K. F. / Luo, L. / Leung, L. M. L. et al. | British Library Conference Proceedings | 2003


    Ultra violet light and its uses

    Rentschler, H.C. | Engineering Index Backfile | 1931




    Interferometry at the Vacuum Ultra-Violet Limit

    Thorne, A. P. et al. | British Library Online Contents | 1993