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Simplified Large‐Area Manufacturing of Organic Electrochemical Transistors Combining Printing and a Self‐Aligning Laser Ablation Step
Author(s) -
Blaudeck Thomas,
Ersman Peter Andersson,
Sandberg Mats,
Heinz Sebastian,
Laiho Ari,
Liu Jiang,
Engquist Isak,
Berggren Magnus,
Baumann Reinhard R.
Publication year - 2012
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201102827
Subject(s) - materials science , transistor , laser ablation , nanotechnology , optoelectronics , laser , organic semiconductor , printed electronics , semiconductor , voltage , inkwell , electrical engineering , optics , composite material , physics , engineering
A hybrid manufacturing approach for organic electrochemical transistors (OECTs) on flexible substrates is reported. The technology is based on conventional and digital printing (screen and inkjet printing), laser processing, and post‐press technologies. A careful selection of the conductive, dielectric, and semiconductor materials with respect to their optical properties enables a self‐aligning pattern formation which results in a significant reduction of the usual registration problems during manufacturing. For the prototype OECTs, based on this technology, on/off ratios up to 600 and switching times of 100 milliseconds at gate voltages in the range of 1 V were obtained.