Fluorinated copper(I) carboxylates as advanced tunable p-dopants for organic light-emitting diodes

Abstract

Volatile copper(I) benzoates with variable degrees of fluorination are used for p-doping of organic hole-transport layers in single-carrier devices, charge-generation layers, and in organic light-emitting diodes. The charge-transport abilities of the doped materials correlate with the degree and position of the fluorination on the aromatic ring of the carboxylate groups.

Keywords: charge-generation layers; copper(I) carboxylates; hole-transport layers; organic light-emitting diodes; p-dopants.