Drastic transitions of excited state and coupling regime in all-inorganic perovskite microcavities characterized by exciton/plasmon hybrid natures
作者机构：Faculty of Electrical Engineering and ElectronicsKyoto Institute of TechnologyMatsugasakiSakyo-kuKyoto 606-8585Japan
出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)
年 卷 期：2022年第11卷第1期
页 面：79-86页
核心收录：
学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学]
基 金：K.Y.acknowledges funding from the Japan Society for the Promotion of Science,JSPS KAKENHI(Nos.20K21000 and 20KK0088) from JST CREST(JPMJCR02T4)
摘 要：Lead-halide perovskites are highly promising for various optoelectronic applications,including laser ***,fundamental photophysics explaining the coherent-light emission from this material system is so intricate and often the subject of ***,we systematically investigate photoluminescence properties of all-inorganic perovskite microcavity at room temperature and discuss the excited state and the light–matter coupling regime depending on excitation ***-resolved photoluminescence clearly exhibits that the microcavity system shows a transition from weak coupling regime to strong coupling regime,revealing the increase in correlated electron–hole *** pumping fluence above the threshold,the photoluminescence signal shows a lasing behavior with bosonic condensation characteristics,accompanied by long-range phase *** excitation density required for the lasing behavior,however,is found to exceed the Mott density,excluding the exciton as the excited *** results demonstrate that the polaritonic Bardeen–Cooper–Schrieffer state originates the strong coupling formation and the lasing behavior.
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