L.K. Wang, A. Acovic, et al.
MRS Spring Meeting 1993
A series of studies have been carried out on polyaniline (emeraldine base; EB) thin films deposited on glass substrates from aqueous solutions of polymerizing aniline ("in-situ" EB-I film). These films exhibit a Vis/UV spectrum in which the exciton peak has an absorption maximum at ∼600 nm. Exposure of EB-I film to NMP vapor results in a red-shift of the exciton peak to ∼650 nm (EB-II film). Doping of EB-II film by aq. HCl vapor gives a more delocalized electronic structure and higher electrical conductivity than those of the doped EB-I film. It is concluded that EB-I and EB-II exist in "tight coil" and "expanded coil" conformations respectively which do not change on doping in aqueous HCl.
L.K. Wang, A. Acovic, et al.
MRS Spring Meeting 1993
Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
Imran Nasim, Melanie Weber
SCML 2024
T. Schneider, E. Stoll
Physical Review B