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Title: Optimized circuit design for flexible 8-bit RFID transponders with active layer of ink-jet printed small molecule semiconductors
Authors: Kjellander, B.K.C ×
Smaal, W.T.T
Myny, Kris
Genoe, Jan
Dehaene, Wim
Heremans, Paul
Gelinck, G. H #
Issue Date: Mar-2013
Publisher: Elsevier Science
Series Title: Organic Electronics vol:14 issue:3 pages:768-774
Abstract: We ink-jet print a blend of 6,13-bis(triisopropyl-silylethynyl)pentacene and polystyrene as the active layer for flexible circuits. The discrete ink-jet printed transistors exhibit a saturation mobility of 0.5 cm2 V−1 s−1. The relative spread in transistor characteristics can be very large. This spread is due to the morphology of the TIPS-PEN crystals, and is difficult to control using inkjet printing. Here we apply a novel circuitry design to minimize the probability of differences between the transistors. We include up to four transistors under the same ink-jet printed deposit. With the new design, we demonstrate unipolar circuitry building blocks such as inverters, NANDs and 19-stage ring-oscillators. Additionally, we integrate almost 300 TFTs, on a surface area of 34 mm2 of plastic foil, for 8-bit RFID transponder circuits.
URI: 
ISSN: 1566-1199
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Electrical Engineering (ESAT) TC, Technology Campus Diepenbeek
ESAT - MICAS, Microelectronics and Sensors
× corresponding author
# (joint) last author

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