Spin dynamics in an iodine-doped poly(thiophene) derivative, poly(3-butylthiophene-2,5-dyle), has been studied by means of in situ electron paramagnetic resonance (EPR) and conductivity measurements. As a result of closely monitoring the doping and dedoping processes, in addition to the narrow polarem EPR signal, an additional one, with a relatively broad line width, was observed in heavily doped samples and attributed to a strong polaron spin-spin correlation.
Bibliographical noteFunding Information:
This work was supported by the Korea Ministry of Science Technology (National Research Laboratory and grant No. M102KS010001-02K1901-01814) and by the Korea Research Foundation (BK21). C.E.L. gratefully acknowledges a Korea University Research Fund. Measurements at the Center for Electro- and Photo-Responsive Molecules at Korea University are gratefully acknowledged. The authors thank Dr D.K. Oh for technical assistance.
- A. Polymers, elastomers, and plastics
- D. Electronic states (localized)
- D. Spin dynamics
- E. Electron paramagnetic resonance
ASJC Scopus subject areas
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry