| Title: |
Poly(ionic liquid) dielectric for high performing P- and N-type single walled carbon nanotube transistors |
| Authors: |
Tousignant, Mathieu N.; Ourabi, May; Niskanen, Jukka; Mirka, Brendan; Bodnaryk, William J.; Adronov, Alex; Lessard, Benoît H. |
| Source: |
Tousignant, M N, Ourabi, M, Niskanen, J, Mirka, B, Bodnaryk, W J, Adronov, A & Lessard, B H 2022, 'Poly(ionic liquid) dielectric for high performing P- and N-type single walled carbon nanotube transistors', Flexible and Printed Electronics, vol. 7, no. 3, 034004. https://doi.org/10.1088/2058-8585/ac928f |
| Publication Year: |
2022 |
| Subject Terms: |
poly(ionic liquid); polyelectrolyte; polymer dielectric; single walled carbon nanotubes; thin film transistors |
| Description: |
There is an increasing demand for low-cost and high-performance electronics which has stimulated a need for new high-performance dielectric materials. We have developed a facile synthesis of poly(2-(methacryloyloxy)ethyl trimethylammonium bis(trifluoromethylsulfonyl)azanide-ran-methyl methacrylate) (P(METATFSI-MMA)), a polymeric ionic liquid that can be used as a high-performance dielectric for semiconducting single walled carbon nanotube (SWCNTs) thin film transistors (TFTs). The P(METATFSI-MMA) polymer was synthesized at both 35 and 62 mol% of 2-(methacryloyloxy)ethyl trimethylammonium bis(trifluoromethylsulfonyl)azanide and produced p- and n-type devices that functioned under ambient conditions. These TFTs were then used to study the impact of electrochemical doping on the performance of SWCNT TFTs when switching from n-type, where an electrical double layer is formed, to p-type, where the TFSI- anions are free to interact with the SWCNTs. The TFTs operating in p-type had higher current on/off ratios and a larger transconductance than those operating in n-type, which is characteristic of electrochemically doped transistors. Furthermore, we tested the impact of operating frequency on device performance and discovered that decreasing the operating frequency of the TFTs resulted in a decreased hysteresis. The decrease in hysteresis was also observed to be more significant for the 35 mol% polymer. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| ISSN: |
2058-8585 |
| Relation: |
info:eu-repo/semantics/altIdentifier/pissn/2058-8585 |
| DOI: |
10.1088/2058-8585/ac928f |
| Availability: |
https://cris.vtt.fi/en/publications/7cdfe4ce-b381-4ad0-a0c0-52e2570d6607; https://doi.org/10.1088/2058-8585/ac928f; https://www.scopus.com/pages/publications/85139848682 |
| Rights: |
info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.4BF3C2C6 |
| Database: |
BASE |