RAMAN STUDY OF DOPED POLYACETYLENES
- 1 June 1983
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 44 (C3) , C3-337
- https://doi.org/10.1051/jphyscol:1983367
Abstract
We present Raman scattering results obtained on doped polyacetylene films, using a variety of dopants including electron acceptors (I2, Br2, SbF5, ClO4-, FeCl3) and electron donors (Li for example). We show that a cis-trans isomerization is always induced upon doping. Compared to an undoped trans-(CH)x, the doping process leads to a shortening of the trans sequences, if the model of the chain length distributions is valid. For all doped samples, an additional band is observed close to the C=C stretch Raman band at about 1600 cm-1Keywords
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