OXYGEN-INDUCED ESR LINE BROADENING IN CONDUCTING POLYMERS - THE EFFECT OF MOISTURE

Authors
HOUZE E NECHTSCHEIN M
Citation
E. Houze et M. Nechtschein, OXYGEN-INDUCED ESR LINE BROADENING IN CONDUCTING POLYMERS - THE EFFECT OF MOISTURE, Synthetic metals, 84(1-3), 1997, pp. 947-948
Citations number
9
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
84
Issue
1-3
Year of publication
1997
Pages
947 - 948
Database
ISI
SICI code
0379-6779(1997)84:1-3<947:OELBIC>2.0.ZU;2-B
Abstract
The oxygen-induced ESR line broadening has been investigated in the ca se of the conducting polymer polyaniline. Pumping under vacuum results in a narrowing of the ESR linewidth. After initial pumping various ox ygen containing gas has been applied to the sample (pure O-2, ambient air, and dry air) and the linewidth has been measured as a function of time. The residual water in these gases was found to drastically affe ct the line broadening behavior. In particular, in absence of moisture the slow ''relaxation'' of the linewidth, which was reported before, is suppressed.