Title of article
Electronic properties of the conducting form of polyaniline from electroabsorption measurements
Author/Authors
Premvardhan، نويسنده , , Lavanya and Peteanu، نويسنده , , Linda A. and Wang، نويسنده , , Pen-Cheng and MacDiarmid، نويسنده , , Alan G.، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2001
Pages
5
From page
157
To page
161
Abstract
The polaron band at ∼1.4 eV of d,l-camphorsulfonic acid-doped polyaniline ((±)-HCSA-PANI) in a poly(methyl methacrylate) (PMMA) matrix was studied using electroabsorption (Stark-effect) spectroscopy at 298 K. A very small change in dipole moment on excitation (|Δμ|) in the order of 1.4±0.2 D was measured as well as an average change in polarizability (Δα) of only −1.3±0.4 Å3. The electroabsorption signal of (±)-HCSA-PANI in this region showed evidence for heterogeneity in the absorption band.
Keywords
Polaron , Dipole , polarizability , electroabsorption , Acid-doped polyaniline
Journal title
Synthetic Metals
Serial Year
2001
Journal title
Synthetic Metals
Record number
2073913
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