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Aerosol‐Jet Printing of Polymer‐Sorted (6,5) Carbon Nanotubes for Field‐Effect Transistors with High Reproducibility
Author(s) -
Rother Marcel,
Brohmann Maximilian,
Yang Shuyi,
Grimm Stefan B.,
Schießl Stefan P.,
Graf Arko,
Zaumseil Jana
Publication year - 2017
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201700080
Subject(s) - materials science , carbon nanotube , nanotechnology , printed electronics , transistor , fabrication , inkwell , screen printing , polymer , field effect transistor , electronics , optoelectronics , composite material , electrical engineering , medicine , alternative medicine , engineering , pathology , voltage
Single‐walled carbon nanotubes (SWNTs) are a promising material for flexible and printed electronics. Efficient dispersion and sorting methods facilitate the production of large quantities of high‐quality semiconducting SWNT inks for direct printing. Here, the suitability of aerosol‐jet printing of polymer‐sorted (6,5) SWNTs for top‐gate field‐effect transistors is investigated. Despite the sonication involved in the printing process, almost no impact on the quality of the SWNTs in terms of defects and length is found. Printed network transistors show reproducible device performance over extended printing periods and for different ink batches with constant printing parameters. Deposition of multiple SWNT layers to obtain thicker and optically dense films increases the effective mobility and on‐conductance, while also decreasing hysteresis. Aerosol‐jet printing of SWNTs is thus suitable for the fabrication of integrated circuits based on nanotube transistors.