Progress in Electrochemiluminescence of Halide Perovskites Nanocrystals

Halide perovskites nanocrystals (PeNCs) have attracted much attention in the field of photovoltaics and optoelectronic due to their excellent optical properties such as good conductivity and adjustable band gap. In recent years, many scholars have evaluated the possibility of PeNCs in the field of electrochemiluminescence (ECL) and found that PeNCs produce higher color purity ECL than other classical quantum dots based on annihilation and co-reaction mechanism, but with the poor stability of PeNCs. Researchers have achieved more satisfactory ECL efficiency in organic and aqueous medium with different strategies such as surface engineering, structural modification and interfacial manipulation with PeNCs. In this review, recent advances of PeNCs related ECL, including the ECL mechanisms, methods to improve the stability and ECL efficiency and the applications in ECL were summarized, and the future prospect was also anticipated.