Considering a site-potential difference between amine and imine, we investigate the self-consistent-variation ground and defect state of the emeraldine-base polymer in the framework of an extended Ginder-Epstein model. The results show that the model with a site-potential difference α_im — α_am = 0.8 eV can reproduce most of the observed data in the polymer. The 1.4 and 0.9 eV peaks of photoinduced absorption in the EB polymer can be attributed to the charged combined polarons P^— and P⁺, respectively.

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Volume219, Issue1

May 2000

Pages 63-70

Different Site Potentials for Amine and Imine in the Emeraldine-Base Polymer

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Different Site Potentials for Amine and Imine in the Emeraldine-Base Polymer

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