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Field effect of carbon nanotubes with an ionomeric polymer
Author(s) -
Levitsky Igor A.,
Kolobov Igor G.,
Euler William B.
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200642545
Subject(s) - nafion , carbon nanotube , materials science , ionomer , polymer , hysteresis , nanotube , nanotechnology , layer (electronics) , electrolyte , field effect transistor , chemical engineering , transistor , composite material , voltage , electrode , chemistry , electrochemistry , condensed matter physics , electrical engineering , copolymer , physics , engineering
Flexible field effect transistors based on a single walled carbon nanotube (SWNT) network and an ionomeric polymer (nafion) were obtained by spraying nanotubes onto the polymer film. The threshold gate voltage was extremely low, ∼1 V, which was surprising since the nafion layer was so thick, ∼180 μm. This was attributed to the electrolytic nature of nafion, which results in the existence of a screening layer at the polymer‐nanotube interface. FET hysteresis can be rationalized in terms of charge redistribution induced by mobile protons inside nafion clusters in proximity to the nanotube surface. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)