Title
Optimized circuit design for flexible 8-bit RFID transponders with active layer of ink-jet printed small molecule semiconductors
Author
Kjellander, B.K.C.
Smaal, W.T.T.
Myny, K.
Genoe, J.
Dehaene, W.
Heremans, P.
Gelinck, G.H.
Publication year
2013
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. © 2012 Elsevier B.V. All rights reserved.
Subject
Mechatronics, Mechanics & Materials
HOL - Holst
TS - Technical Sciences
High Tech Systems & Materials
Materials
Industrial Innovation
Flexible circuits
Ink-jet printing
Morphology
Organic RFID
Organic transistors
Unipolar circuits
Building blockes
Circuit designs
Flexible circuit
Organic transistor
Printed transistors
RFID transponders
Saturation mobility
Transistor characteristics
Ink jet printers
Ink jet printing
Integrated circuit manufacture
Morphology
Polystyrenes
Transponders
Transistors
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TNO identifier
471482
ISSN
1566-1199
Source
Organic Electronics: physics, materials, applications, 14 (3), 768-774
Document type
article