Magneto‐Capacitance of PEDOT:PSS Thin Films; Effects of a Two‐Phase System and Coulomb Interaction
Abstract The study of the net magneto‐capacitance, C(B), in thin films of the conducting polymer Poly(3 4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is presented. In the films there are charged electrically‐conducting PEDOT‐rich regions surrounded by PSS insulating charged material....
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2025-03-01
|
| Series: | Advanced Electronic Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/aelm.202400015 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Abstract The study of the net magneto‐capacitance, C(B), in thin films of the conducting polymer Poly(3 4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is presented. In the films there are charged electrically‐conducting PEDOT‐rich regions surrounded by PSS insulating charged material. The high‐conductivity grade PEDOT:PSS thin films are studied at low temperature, where the hopping conduction is dominant. It is experimentally observed that there is a finite net magneto‐capacitance, C(B), in the temperature range T = 1.7–3 K. Thus, the observed C(B) is a direct evidence for an intra‐site Coulomb interaction, U ≈ 2 meV, among the mobile charge carriers in the PEDOT‐rich regions. The lifting of spin degeneracy motivates PEDOT for use in spintronic applications. |
|---|---|
| ISSN: | 2199-160X |