Cathodic electrochemiluminescence performance of all-inorganic perovskite CsPbBr3 nanocrystals in an aqueous medium

Abstract

We report cathodic electrochemiluminescence (ECL) from all-inorganic perovskite nanocrystals (NCs) in an aqueous medium. An electron transfer annihilation pathway was proposed for the all-inorganic perovskite CsPbBr3 NCs with potassium peroxydisulfate (K2S2O8) as coreactant. In addition to the greenish ECL emission with its excellent stability, this study might open a door to further applications of perovskite-based ECL probes. Keywords: Electrochemiluminescence, Cathodic, All-inorganic perovskite, Aqueous medium