Abstract

Along with being superior in solar cell applications, perovskites are also gaining popularity as an ideal semiconductor material for investigating light-matter interaction in the strong coupling regime. In recent years, the demonstration of exciton-polaritons in perovskites has advanced rapidly due to the materials' exceptional optical characteristics, which include relatively high refractive indices, large binding energies, strong room-temperature excitons, broad wavelength tunability, and simple and cost-effective growth conditions.

Here, we discuss the fundamental properties of perovskite semiconductors for exciton-polaritons and review their recent rapid advances in the strong coupling between excitons in perovskite and various photonic cavities. More specifically, we survey the recent progress on the theoretical and experimental realization of strong light-matter interaction using a variety of optical cavities, and their applications in the polariton condensation and polariton lasing. Finally, we provide an outlook and future prospects in this exciting field.