Trifluoromethyl-substituted cyclometalated iridium^III emitters with high photostability for continuous oxygen sensing

Abstract

New trifluoromethyl-substituted cyclometalated Ir(<sc>iii</sc>) complexes exhibit high photoluminescence quantum yields, increased oxidation potentials and enhanced photostability. The oxygen sensing films immobilized with Ir(<sc>iii</sc>) complexes demonstrate quick response and high sensitivity upon changes of oxygen concentrations.