Clean surface processing of rubrene single crystal immersed in ionic liquid by using frequency modulation atomic force microscopy

Surface processing of a rubrene single crystal immersed in ionic liquids is valuable for further development of low voltage transistors operated by an electric double layer. We performed a precise and clean surface processing based on the tip-induced dissolution of rubrene molecules at the ionic liq...

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Veröffentlicht in:Applied physics letters 2014-06, Vol.104 (26)
Hauptverfasser: Yokota, Yasuyuki, Hara, Hisaya, Morino, Yusuke, Bando, Ken-ichi, Imanishi, Akihito, Uemura, Takafumi, Takeya, Jun, Fukui, Ken-ichi
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Sprache:eng
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Zusammenfassung:Surface processing of a rubrene single crystal immersed in ionic liquids is valuable for further development of low voltage transistors operated by an electric double layer. We performed a precise and clean surface processing based on the tip-induced dissolution of rubrene molecules at the ionic liquid/rubrene single crystal interfaces by using frequency modulation atomic force microscopy. Molecular resolution imaging revealed that the tip-induced dissolution proceeded via metastable low density states derived from the anisotropic intermolecular interactions within the crystal structure.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4886154