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Electron Paramagnetic Resonance Studies of Donor-Acceptor Salts in Polymer Media

Published online by Cambridge University Press:  25 February 2011

Yang-Cheng Fann  and
Susan Ann Jansen
Yang-Cheng Fann
Affiliation:
Department of Chemistry and Materials Science, Temple University, Philadelphia, Pa. 19122
Susan Ann Jansen
Affiliation:
Department of Chemistry and Materials Science, Temple University, Philadelphia, Pa. 19122
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Abstract

Charge transfer complexes, their inherent electrical conductivity, magnetic properties and donor-acceptor redox relationships have been a focus of much research in the last several years. One direction has been in the design of memory devices and applications in molecular electronics.1,2 Our work has focused on analysis of such processes in a polymeric medium. Polycarbonate films of 7,7’,8,8’-Tetracyanoquinodimethane (TCNQ) and o-tolidine (o-T) complexes were studied by EPR spectroscopy from 100-300K. EPR spectra and magnetic susceptibility of the dispersed charge-transfer complexes are presented and compared with the pristine materials. These studies were carried out as a function of donor/acceptor stoichiometry and concentration within the polymer matrix. Saturation studies show significant differences as the composition varies. In addition the g-tensor and linewidth are strongly dependent on temperature and composition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 173: Symposium Q – Advanced Organic Solid State Materials , 1989 , 161
Copyright
Copyright © Materials Research Society 1990

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References

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