Počet záznamů: 1  

Pressure-temperature phase diagram of ionic liquid dielectric DEME-TFSI

  1. 1. 0485778 - FZU-D 2018 RIV NL eng C - Konferenční příspěvek (zahraniční konf.)
    McCann, D.M. - Míšek, Martin - Kamenev, K. V. - Huxley, A.D.
    Pressure-temperature phase diagram of ionic liquid dielectric DEME-TFSI.
    Physics Procedia - ICM 2015. Vol.75. Amsterdam: Elsevier, 2015 - (Labarta, A.), s. 252-258. ISSN 1875-3892.
    [International Conference on Magnetism /20./. Barcelona (ES), 05.07.2015-10.07.2015]
    Institucionální podpora: RVO:68378271
    Klíčová slova: DEME-TFSI * ionic liquid * pressure * phase * glass transition
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)

    Ionic liquids have proven highly effective as dielectrics in Electric Double Layer (EDL) devices for electrostatic doping in a range of materials. DEME-TFSI in particular is a commonly used dielectric due to its high ionic conductivity and low glass transition temperature of 182 K. Application of pressure provides a dual tuning parameter in tandem with the electric field yet progress is hampered by the lack of an accurate pressure-temperature phase diagram for DEME- TFSI. We present results on expansivity and leakage current measurements of the ionic liquid dielectric DEME-TFSI to provide a phase diagram mapping the glass transition temperature up to 0.6 GPa. This should allow the effective operation of EDL devices using DEME-TFSI under pressure.

    Trvalý link: http://hdl.handle.net/11104/0280721