Macromolecular electronic device: Field-effect transistor with a polythiophene thin film

Tsumura, A.; Koezuka, H.; Ando, T.
November 1986
Applied Physics Letters;11/3/1986, Vol. 49 Issue 18, p1210
Academic Journal
The first solid-state field-effect transistor has been fabricated utilizing a film of an organic macromolecule, polythiophene, as a semiconductor. The device characteristics have been optimized by controlling the doping levels of the polymer. The device is a normally off type and the source (drain) current can be modulated by a factor of 102–103 by varying the gate voltage. The carrier mobility and the transconductance have also been determined to be ∼10-5 cm2/V s and 3 nS, respectively, by means of electrical measurements.


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