Phenothiazine and carbazole substituted pyrene based electroluminescent organic semiconductors for OLED devices

Jagadish K. Salunke, F. L. Wong, Krishna Feron, Sergei Manzhos, Ming Fai Lo, Durgaprasad Shinde, Abhijeet Patil, C. S. Lee, V. A L Roy, Prashant Sonar, Prakash P. Wadgaonkar

    Research output: Contribution to journalArticleScientificpeer-review

    104 Citations (Scopus)

    Abstract

    Due to their easy availability, low cost and opportunities for exploiting reactions of bromo substituents, 1,3,6,8-tetrabromopyrene has attracted major attention in the organic electronics community for designing and constructing novel classes of pyrene based organic semiconducting functional materials. In the present work, 1,3,6,8-tetrabromo pyrene was transformed into the corresponding tetrasubstituted carbazole and phenothiazine derivatives using the classical Suzuki coupling reaction. These newly synthesized materials with a carbazole substituent (PY-CA) and a phenothiazine substituent (PY-PH) were characterised thoroughly and were successfully used as an active light-emitting layer in organic light emitting diodes which resulted in blue and green emission with promising device performance. PY-CA exhibited the maximum brightness at around 2500 cd m-2 and the power efficiency of 1.5 lm W-1 while that of PY-PH exhibited 2116 cd m-2 and 0.45 lm W-1 respectively.

    Original languageEnglish
    Pages (from-to)1009-1018
    Number of pages10
    JournalJournal of Materials Chemistry C
    Volume4
    Issue number5
    DOIs
    Publication statusPublished - 7 Feb 2016
    Publication typeA1 Journal article-refereed

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • General Chemistry
    • Materials Chemistry

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