A pneumatic nozzle-based printing technique that can control the crystallization of small molecule organic semiconductor thin films during deposition is reported. By tuning the printing speed and the substrate temperature, large-sized organic crystals are grown along the printing direction, resulting in field-effect mobility enhancement by 50 times compared to spin-coated films for 6,13-bis(triisopropylsilylethynyl)-pentacene. Furthermore, silver electrodes using the technique to fabricate printed flexible inverters with a gain as high as 16 are printed.
|Advanced Electronic Materials
|Published - Jun 2018
Bibliographical noteFunding Information:
S.Y. and S.P. contributed equally to this work. This work was partially supported by the FlexTech Alliance, the National Science Foundation under AwardNo.1264927, and Columbia University’s Research Initiatives for Science and Engineering program. Y.B. further acknowledges support from the Alliance Program and J.B. is grateful to the Marietta Blau Grant of the OeAD.
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
- crystal control
- organic field-effect transistors (OFETs)
- thin films
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials