ALL-POLYMER BASED FLEXIBLE FIELD EFFECT TRANSISTOR USING POLY(3,4-ETHYLENEDIOXYTHIOPHENE) (PEDOT) AND POLYPYRROLE (PPY)

Author:

KANG H. S.1,KANG H.-S.1,LEE J. K.1,JOO J.1,LEE M. S.2,KIM M. S.2,LEE J. Y.2

Affiliation:

1. Department of Physics, Korea University, Seoul 136-701, Korea

2. School of Applied Chemistry and Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea

Abstract

We fabricated all-polymer based flexible field effect transistors (FETs) using poly (3,4-ethylenedioxythiophene) (PEDOT) or polypyrrole (PPy) as the active layer and gate electrode. Polyvinyle cinnamate (PVCN) and epoxy were used for a dielectric layer. The PEDOT and PPy as the active layer and electrode were patterned through simple photo-lithography, and PVCN and epoxy as insulating layers were coated by using a spin-coater. We estimated the threshold voltage and trans-conductance through measuring the drain-source current (I ds ) as a function of gate bias (V g ). We suggest that ionic motion in the active layer plays an important role for electrical properties.

Publisher

World Scientific Pub Co Pte Lt

Subject

Physics and Astronomy (miscellaneous),Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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