Journal
ORGANIC ELECTRONICS
Volume 13, Issue 2, Pages 320-328Publisher
ELSEVIER
DOI: 10.1016/j.orgel.2011.12.001
Keywords
Organic field-effect transistor; Inkjet printing; Bias stress stability; Contact resistance
Funding
- EU NAIMO [NMP4-CT-2004-500355]
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In this contribution we demonstrate for the first time a downscaled n-channel organic field-effect transistors based on N,N'-dialkylsubstituted-(1,7&1,6)-dicyanoperylene-3,4: 9, 10-bis(dicarboximide) with inkjet printed electrodes. First we demonstrate that the use of a high boiling point solvent is critical to achieve extended crystalline domains in spin-coated thin films and thus high electron mobility > 0.1 cm(2) V-1 s(-1) in top-gate devices. Then inkjet-printing is employed to realize sub-micrometer scale channels by dewetting of silver nanoparticles off a first patterned gold contact. By employing a 50 nm crosslinked fluoropolymer gate dielectric, similar to 200 nm long channel transistors can achieve good current saturation when operated < 5 V with good bias stress stability. (C) 2011 Elsevier B. V. All rights reserved.
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