Conductivity enhancement of PEDOT/PSS films with ionic liquids as dopants was written by Lee, Sungkoo;Lee, Kyeong K.. And the article was included in Advanced Materials Research (Zuerich, Switzerland) in 2010.Name: 1-Butyl-4-methylpyridin-1-ium bromide This article mentions the following:
The ionic materials were added to PEDOT/PSS solution as secondary dopants. The conductivity of PEDOT/PSS film improved with adding ionic materials. The film of PEDOT/PSS with 1% pyridinium p-toluene-sulfonate showed the conductivity of 23S/cm, which is increased about three orders than the film of origin PEDOT/PSS with 0.028S/cm. The surface morphol. of films of PEDOT/PSS mixture is investigated by at. force microscope. The AFM showed the increasing of grain size with the addition of pyridinium p-toluene-sulfonate. In the experiment, the researchers used many compounds, for example, 1-Butyl-4-methylpyridin-1-ium bromide (cas: 65350-59-6Name: 1-Butyl-4-methylpyridin-1-ium bromide).
1-Butyl-4-methylpyridin-1-ium bromide (cas: 65350-59-6) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Name: 1-Butyl-4-methylpyridin-1-ium bromide