Polymer/YOx Hybrid-Sandwich Gate Dielectrics for Semitransparent Pentacene Thin-Film Transistors Operating Under 5 V


  • This research was performed with financial support from KOSEF (Program No. M1-0214-00-0228), LG, Philips LCD (project year 2005). The authors also acknowledge support from Brain Korea 21 Project. JHK acknowledges financial support from the Electron Spin Science Center at Postech, funded by KOSEF/MOST.


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A hybrid-sandwich dielectric—combining the advantages of inorganic high-dielectric-constant dielectrics and ultrathin organic dielectrics—for the gate of pentacene thin-film transistors (TFTs, see figure) is presented. The performance of the TFTs and resistance-load inverters constructed with them is shown to be satisfactory even when the devices are operated at the low voltage of –5 V.