Spray-coatable ionogels based on silane-ionic liquids for low voltage, flexible, electrolyte-gated organic transistors

We introduce a new type of silane-based ionogels that are produced by gelation of the ionic liquid 3-methyl-1-(3-(triethoxysilyl)propyl)-imidazolium bis(trifluoromethylsulfonyl)imide ([(EtO) 3 SiPMIM][TFSI]) with tetramethylorthosilane and formic acid. In the obtained ionogels the cations are involv...

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Bibliographic Details
Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2014-01, Vol.2 (13), p.2423-2430
Main Authors: Thiemann, S., Sachnov, S. J., Gruber, M., Gannott, F., Spallek, S., Schweiger, M., Krückel, J., Kaschta, J., Spiecker, E., Wasserscheid, P., Zaumseil, J.
Format: Article
Language:English
Subjects:
Capacitance
Cations
Devices
Electronics
Foils
Low voltage
Semiconductor devices
Transistors
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Summary:We introduce a new type of silane-based ionogels that are produced by gelation of the ionic liquid 3-methyl-1-(3-(triethoxysilyl)propyl)-imidazolium bis(trifluoromethylsulfonyl)imide ([(EtO) 3 SiPMIM][TFSI]) with tetramethylorthosilane and formic acid. In the obtained ionogels the cations are involved in the network formation while the anions can move freely. The ionogels show advantageous properties for application in flexible electronics, such as low modulus, solution processability and high specific capacitance. Spray-coated ionogels were used as high capacitance gate dielectrics for organic (poly[3-hexylthiophene], P3HT) electrolyte-gated transistors (EGTs) that operated at very low voltages (
ISSN:2050-7526
2050-7534
DOI:10.1039/C3TC32465F