Journal
ORGANIC ELECTRONICS
Volume 10, Issue 8, Pages 1579-1582Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2009.09.004
Keywords
Organic single-crystal transistor; Electrolyte gating; Ionic liquid; Rubrene
Funding
- Ministry of Education, Culture, Sports, Science, and Technology, Japan [17069003, 18028029, 19360009, 20740213]
- Grants-in-Aid for Scientific Research [20740213] Funding Source: KAKEN
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High-performance rubrene single-crystal field-effect transistors are developed with binary ionic liquid electrolytes used for gating. Inclusion of small amount of inorganic salts in the ionic liquids enhances the degree of dissociation for the organic ions and accelerates formation of the electric-double-layers in response to the gate voltage. High carrier mobility of 2.9 cm(2)/Vs is achieved in the rubrene single-crystal transistors with the mixture ionic liquid. In addition to the advantage of the low-voltage operation due to concentrated field in ultra-thin electric-double-layers, drastically increased capacitance at above 100 Hz makes the technique of the ionic liquid gating more attractive for fast-switching devices. (C) 2009 Elsevier B.V. All rights reserved.
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