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www.adv-radio-sci.net/1/219/2003/
doi:10.5194/ars-1-219-2003
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Organic Field-Effect-Transistors with Pentacene for radio-controlled-price-tag applications
University of Paderborn, Department of Electrical Engineering, D-33098 Paderborn, Germany
Abstract. This letter presents organic thin-film-transistors (OTFT) using the small organic molecule Pentacene targeting applications like radio controlled identification tags. Simple OTFTs as well as inverter circuits based on a pconducting silicon wafer substrate are presented. Comparing PECVD oxide and LTO as dielectric, only LTO deposited layers provide sufficient electrical stability. PECVD oxides show defects called “pin-holes", leading to short circuiting through the gate dielectrics. OTFTs of L=1µm/W=1000µm were prepared providing Ids = 61µA at –40Vds and –40Vgs, a subthreshold slope of 10.3 V/dec and an on-offratio of 102. The inverter circuits using insulated gate contacts switch from VA=–10V to VA=–3V output voltage when the input voltage is varied from VE=0V to VE=–8V at a supplied voltage of VB=–10V.
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Citation: Pannemannn, C., Diekmann, T., and Hilleringmann, U.: Organic Field-Effect-Transistors with Pentacene for radio-controlled-price-tag applications, Adv. Radio Sci., 1, 219-221, doi:10.5194/ars-1-219-2003, 2003. Bibtex EndNote Reference Manager XML
