Abstract
Non-piezoelectric inkjet printing methods, namely, ultrasonic inkjet printing and electrostatic inkjet printing have been used for fabricating an all-solution-processed organic thin- film transistor. Silver nanoparticle ink is patterned to form source/drain electrodes using the electrostatic inkjet method and high-viscosity poly(3,4-ethylenedioxythiophene) doped poly (styrene sulfonate) (PEDOT:PSS) was patterned as a gate electrode using ultrasonic inkjet printing. Polymer insulator and polymer semiconductor are spin-coated as a gate dielectric layer and a semiconductor layer, respectively. This is the first fabrication of all-solution-processed organic transistor using non-piezoelectric inkjet printing.
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