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

Thiemann S, Sachnov S, Gruber M, Gannott F, Spallek S, Schweiger M, Krückel J, Kaschta J, Spiecker E, Wasserscheid P, Zaumseil J (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Journal of Materials Chemistry C Royal Society of Chemistry

Publisher: Royal Society of Chemistry

Book Volume: 2

Pages Range: 2423--2430

Volume: 2

Issue: 13

Journal Issue: 13

DOI: 10.1039/c3tc32465f

Abstract

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)3SiPMIM][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 (<2 V) with high on/off ratios in air over weeks. Devices fabricated on polymer foil remained functional during repeated bending cycles with strains up to 2.3{\%}.

Authors with CRIS profile

Stefan Thiemann Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) (LSP) Swetlana Sachnov Lehrstuhl für Chemische Reaktionstechnik (CRT) Florentina Gannott Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) (LSP) Stefanie Spallek Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Manuel Schweiger Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) (LSP) Johannes Krückel Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) (LSP) Joachim Kaschta Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) (LSP) Erdmann Spiecker Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik (CRT) Jana Zaumseil Professur für Werkstoffwissenschaften (Computational Materials Microscopy)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM) Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

How to cite

APA:

Thiemann, S., Sachnov, S., Gruber, M., Gannott, F., Spallek, S., Schweiger, M.,... Zaumseil, J. (2014). Spray-coatable ionogels based on silane-ionic liquids for low voltage, flexible, electrolyte-gated organic transistors. Journal of Materials Chemistry C, 2(13), 2423--2430. https://doi.org/10.1039/c3tc32465f

MLA:

Thiemann, Stefan, et al. "Spray-coatable ionogels based on silane-ionic liquids for low voltage, flexible, electrolyte-gated organic transistors." Journal of Materials Chemistry C 2.13 (2014): 2423--2430.

BibTeX: Download