Strong circularly polarized electroluminescence based on chiral salen-Zn(ii) complex monomer chromophores

Circularly polarized organic light-emitting diodes were fabricated by using salen-Zn(ii) complex enantiomers (R-/S-ZnL) as the emitting layer, obtaining 1000 cd m⁻², 0.181 cd A⁻¹ and 0.074 lm W⁻¹ for the maximum brightness, current efficiency and power efficiency. With an electroluminescence dissymmetry factor of up to +0.05/−0.05.