Short-channel OFETs

Keywords OFET (organic field effect transistor) Short channel transistor - Short... 

Fabrication and Characterization of Low-Cost Short-Channel OFETs. 165... 

Fig. 6.7. Sschematic models foi C — V measurement of OFETs. (a) shows the connection made to take the characteristic Vos is set to OV and the capacitance is measured between the gate and the shorted source and drain electrodes. In accumulation (b) there are three major contributions to the total capacitance the channel capacitance C oxWL, the gate/source overlap capacitance Cos, and the gate/drain overlap capacitance C gd- In depletion (c), only the overlap capacitance is observed, there is no mobile charge in the channel to contribute to a channel capacitance. The transistor channel is really a distributed RC structure and the lumped R shown is only schematic.

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