Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1672151 | Thin Solid Films | 2009 | 4 Pages |
Abstract
We demonstrate organic field-effect transistors (OFETs) with an ion-dispersed polymer for the gate dielectrics. By applying external electric field (Vex), the dispersed ions can migrate by electrophoresis and separated ion pairs form space charge polarization in the gate dielectrics. After Vex was applied, the drain current is increased over 7 times and threshold voltage is decreased from − 12.9 V to − 2.9 V. The shift direction of Vth is controllable by the polarity of the Vex. Results of ultraviolet/visible differential absorption study reveal that the active layer of OFETs is charged not only electrostatically but electrochemically with increasing the time after Vex was applied.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Heisuke Sakai, Koudai Konno, Hideyuki Murata,