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Kim, Dai-Sik
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Phonon-Polaritons in Lead Halide Perovskite Film Hybridized with THz Metamaterials

DC Field Value Language Kim, Hwan Sik ko Ha, Na Young ko Park, Ji-Yong ko Lee, Soonil ko Kim, Dai-Sik ko Ahn, Yeong Hwan ko 2020-12-31T00:27:01Z - 2020-10-12 ko 2020-09 ko
dc.identifier.citation NANO LETTERS, v.20, no.9, pp.6690 - 6696 ko
dc.identifier.issn 1530-6984 ko
dc.identifier.uri -
dc.description.abstract In this work, we demonstrated a phonon-polariton in the terahertz (THz) frequency range, generated in a crystallized lead halide perovskite film coated on metamaterials. When the metamaterial resonance was in tune with the phonon resonance of the perovskite film, Rabi splitting occurred due to the strong coupling between the resonances. The Rabi splitting energy was about 1.1 meV, which is larger than the metamaterial and phonon resonance line widths; the interaction potential estimation confirmed that the strong coupling regime was reached successfully. We were able to tune the polaritonic branches by varying the metamaterial resonance, thereby obtaining the dispersion curve with a clear anticrossing behavior. Additionally, we performed in situ THz spectroscopy as we annealed the perovskite film and studied the Rabi splitting as a function of the films crystallization coverage. The Rabi splitting versus crystallization volume fraction exhibited a unique power-law scaling, depending on the crystal growth dimensions. ko
dc.language 영어 ko
dc.publisher AMER CHEMICAL SOC ko
dc.title Phonon-Polaritons in Lead Halide Perovskite Film Hybridized with THz Metamaterials ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85090614225 ko
dc.identifier.wosid 000571442000060 ko
dc.type.rims ART ko
dc.identifier.doi 10.1021/acs.nanolett.0c02577 ko
dc.identifier.url ko
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