Thiemann S, Sachnov S, Porscha S, Wasserscheid P, Zaumseil J (2012)
Publication Type: Journal article
Publication year: 2012
Publisher: American Chemical Society
Book Volume: 116
Pages Range: 13536--13544
Volume: 116
Issue: 25
Journal Issue: 25
DOI: 10.1021/jp3024233
We investigate the influence of the chemical structure of a range of imidazolium-based ionic liquids (IL) on their properties as electrolytes and the device characteristics of electrolyte-gated field-effects transistors (FETs) based on spray-deposited polycrystalline zinc oxide (ZnO). We find a decrease of electron field-effect mobility that correlates with the capacitance of the ionic liquids and not only with the size of the IL-cation. The device stability depends significantly on testing conditions. While they are reasonably stable in nitrogen, ZnO-FETs degrade rapidly in ambient air due to absorption of water by the IL and the resulting ZnO surface reactions. Replacement of the most acidic hydrogen atom of the imidazolium cation and surface passivation of ZnO with hexamethyldisilazane improve environmental stability.
APA:
Thiemann, S., Sachnov, S., Porscha, S., Wasserscheid, P., & Zaumseil, J. (2012). Ionic Liquids for Electrolyte-Gating of ZnO Field-Effect Transistors. Journal of Physical Chemistry A, 116(25), 13536--13544. https://dx.doi.org/10.1021/jp3024233
MLA:
Thiemann, Stefan, et al. "Ionic Liquids for Electrolyte-Gating of ZnO Field-Effect Transistors." Journal of Physical Chemistry A 116.25 (2012): 13536--13544.
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