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Analytical model for current transport in organic thin-film transistors

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1 Author(s)
Kwok, H.L. ; Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

The I-V characteristics of organic thin-film transistors are examined and a model is proposed that could explain the behaviour of the drain current in the `subthreshold' mode. The model proposes that an injection current at the source dominates the `subthreshold' current at positive gate voltage and the magnitude of this current is modulated by space charge residing in the bulk of the thin film. It is further proposed that a guard ring around the source could minimise the injection current

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Circuits, Devices and Systems, IEE Proceedings -  (Volume:147 ,  Issue: 2 )