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The semiconductor exciton-polariton, arising from the strong coupling between excitons and confined cavity photon modes, is not only of fundamental importance in macroscopic quantum effects but also has wide application prospects in ultralow-threshold polariton lasers, slowing-light devices, and quantum light sources. Very recently, metallic halide perovskites have been considered as a great candidate for exciton-polariton devices owing to their low-cost fabrication, large exciton oscillator strength, and binding energy. Herein, the latest progress in exciton-polaritons and polariton lasers of perovskites are reviewed. Polaritons in planar and nanowires Fabry-Pérot microcavities are discussed with particular reference to material and photophysics. Finally, a perspective on the remaining challenges in perovskite polaritons research is given.
Du et al. (Tue,) studied this question.