Polyanilines and Polyaniline Dopants

Polyaniline (PANI) is a versatile conducting polymer easily processed by melt or solution process, and is environmentally and thermally stable.1 PANI exists in three stable oxidation states (as shown on the right). The doped emeraldine salt forms of PANI exhibit very high conductivities and are often used for hole-injection (HIL) layers in PLEDs and OPVs. Sigma-Aldrich® offers a full line of the stable, doped and undoped PANIs for a variety of processing needs. We also offer high performance dopants for PANIs.

1. Stejskal, J.; Gilbert, R. Pure. Appl. Chem., 74, 857 (2002).