Kell Mortensen, M.L.W. Thewalt, et al.
Physical Review Letters
The optical conductivity spectra of the conducting and insulating forms of the poly-β, β′-dimethylpyrrole Perchlorate (Pβ DMP-ClO 4) films have been determined by the Kramers-Kronig transformation of the transmittance spectra from 0.074 to 6.25 eV. The optical spectrum of the conducting form is not consistent with Drude-like free carriers. Absorption spectra have been measured on Pβ DMP-ClO4 films with various concentrations of Perchlorate anions obtained using an electrochemical technique. Compared to those of polypyrrole Perchlorate, the absorption spectra of Pβ DMP-ClO4 show some significant differences, especially in the low energy region of the almost neutral forms. Evolution of the Pβ DMP-ClO4 absorption spectra as a function of doping level is inconsistent with a rigid band model and is interpreted in terms of bipolaren formation on the chains. © 1984 American Institute of Physics.
Kell Mortensen, M.L.W. Thewalt, et al.
Physical Review Letters
J.J. Mayerle, G. Wolmershäuser, et al.
Inorganic Chemistry
J.L. Brédas, G.B. Street, et al.
The Journal of Chemical Physics
H. Temkin, G.B. Street
Solid State Communications