TIPS-DBC small molecule O-FETs fabricated by evaporation and solution processing

Daniel Gruszecki, Birendra Singh, Mark Brown, David Lewis

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The performance of organic field effect transistors using the small molecule, tri-isopropyl- silane-di-benzo chrysene (TIPS-DBC) is reported. The field effect mobility FE is found to depend on the deposition conditions, which affect the morphology of the film. A mobility in the range of 1.5×10 -6 to 2.4×10 -4cm 2V -1s -1 is obtained from the evaporated films depending on the substrate treatment and deposition temperature, while films deposited by solution-processing techniques yield mobilities in the range of 0.7×10 -3 to 1.5×10 -3cm 2V -1s -1. The enhanced performance in polycrystalline solution-processed coatings and its relationship to crystallite size is an important parameter in the design of high-performance devices based on small molecules.

    Original languageEnglish
    Article number045104
    Pages (from-to)045104-1-045104-7
    Number of pages7
    JournalJournal of Physics D-Applied Physics
    Volume45
    Issue number4
    DOIs
    Publication statusPublished - 2012

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