Li, X;
Liu, Z;
Zhou, Z;
Gao, H;
Liang, G;
Rauber, D;
Kay, CWM;
(2021)
Effects of Cationic Species in Salts on the Electrical Conductivity of Doped PEDOT:PSS Films.
ACS Applied Polymer Materials
, 3
(1)
pp. 98-103.
10.1021/acsapm.0c01084.
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Abstract
The electrical conductivity of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films with four salts that have various cations but the same bis(trifluoromethanesulfonyl)amide (TFSI) anion was studied. We found that doping salts of small-sized cations led to better conductivity because of the improved crystalline order and p-doped level of PEDOT, as revealed by the grazing-incidence wide-angle X-ray scattering (GIWAXS) and UV-vis spectrum. This phenomenon can be rationalized with the fact that small-sized cations with stronger Coulombic interactions can lead to high doping and rearrangement of PEDOT:PSS. These findings will help to develop recipes based on the PEDOT:PSS/salt composite toward the applications for printed flexible electronics.
| Type: | Article |
|---|---|
| Title: | Effects of Cationic Species in Salts on the Electrical Conductivity of Doped PEDOT:PSS Films |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acsapm.0c01084 |
| Publisher version: | https://doi.org/10.1021/acsapm.0c01084 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Salts, Plastics, Electrical conductivity, Conjugated polymers, Polymers |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10119138 |
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