Abstract
Pentacene thin film transistors (TFTs) were fabricated by using poly(4-vinylphenol) as the gate insulator and pentacene as the organic semiconductor on polyethyleneterephthalate substrates. The TFTs were characterized and the following parameters were obtained: a mobility of 0.8 cm2/V s±0.2 cm2/V s, an on/off current ratio of 106 and a subthreshold slope of 1.0 V/dec. Inverter circuits based on the organic TFTs exhibited transfer curves typical of inverters with gains of 9.7 and a little hysteresis, which is indicative of a small number of interface states.
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