Abstract / Description of output
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.
Original language | English |
---|---|
Title of host publication | Physics Procedia |
Publisher | Elsevier |
Pages | 252-258 |
Number of pages | 7 |
Volume | 75 |
DOIs | |
Publication status | Published - 29 Dec 2015 |
Event | 20th International Conference on Magnetism, ICM 2015 - Barcelona, Spain Duration: 5 Jul 2015 → 10 Jul 2015 |
Conference
Conference | 20th International Conference on Magnetism, ICM 2015 |
---|---|
Country/Territory | Spain |
City | Barcelona |
Period | 5/07/15 → 10/07/15 |
Keywords / Materials (for Non-textual outputs)
- DEME-TFSI
- glass transition
- ionic liquid
- phase
- pressure