Cunning metal core: efficiency/stability dilemma in metallated porphyrin based light-emitting electrochemical cells

Abstract

The syntheses, photophysical/electrochemical characterizations of different metallated porphyrins – i.e., Zn²⁺, Pt²⁺, Pd²⁺, and Sn⁴⁺ porphyrins – as well as their first application in light-emitting electrochemical cells are provided. A direct comparison demonstrates that depending on the metallation either efficient (Pt-por) or stable (Zn-por) devices are achieved, demonstrating that the choice of the metal core is a key aspect for future developments.