Controlling the electro-optic response of a semiconducting perovskite coupled to a phonon-resonant cavity
Abstract Optical cavities, resonant with vibrational or electronic transitions of material within the cavity, enable control of light-matter interaction. Previous studies have reported cavity-induced modifications of chemical reactivity, fluorescence, phase behavior, and charge transport. Here, we e...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Publishing Group
2023-07-01
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| Series: | Light: Science & Applications |
| Online Access: | https://doi.org/10.1038/s41377-023-01232-0 |
| _version_ | 1797769336420564992 |
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| author | Lucia Di Virgilio Jaco J. Geuchies Heejae Kim Keno Krewer Hai Wang Maksim Grechko Mischa Bonn |
| author_facet | Lucia Di Virgilio Jaco J. Geuchies Heejae Kim Keno Krewer Hai Wang Maksim Grechko Mischa Bonn |
| author_sort | Lucia Di Virgilio |
| collection | DOAJ |
| description | Abstract Optical cavities, resonant with vibrational or electronic transitions of material within the cavity, enable control of light-matter interaction. Previous studies have reported cavity-induced modifications of chemical reactivity, fluorescence, phase behavior, and charge transport. Here, we explore the effect of resonant cavity-phonon coupling on the transient photoconductivity in a hybrid organic-inorganic perovskite. To this end, we measure the ultrafast photoconductivity response of perovskite in a tunable Fabry–Pérot terahertz cavity, designed to be transparent for optical excitation. The terahertz-cavity field-phonon interaction causes apparent Rabi splitting between the perovskite phonon mode and the cavity mode. We explore whether the cavity-phonon interaction affects the material’s electron-phonon interaction by determining the charge-carrier mobility through photoconductivity. Despite the apparent hybridization of cavity and phonon modes, we show that the perovskite properties in both ground (phonon response) and excited (photoconductive response) states remain unaffected by the tunable light-matter interaction. Yet the response of the integral perovskite-terahertz optical cavity system depends critically on the interaction strength of the cavity with the phonon: the transient terahertz response to optical excitation can be increased up to threefold by tuning the cavity-perovskite interaction strength. These results enable tunable switches and frequency-controlled induced transparency devices. |
| first_indexed | 2024-03-12T21:07:32Z |
| format | Article |
| id | doaj.art-eabc5fc036a9400e86352e1876bf17c1 |
| institution | Directory Open Access Journal |
| issn | 2047-7538 |
| language | English |
| last_indexed | 2024-03-12T21:07:32Z |
| publishDate | 2023-07-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Light: Science & Applications |
| spelling | doaj.art-eabc5fc036a9400e86352e1876bf17c12023-07-30T11:25:03ZengNature Publishing GroupLight: Science & Applications2047-75382023-07-011211810.1038/s41377-023-01232-0Controlling the electro-optic response of a semiconducting perovskite coupled to a phonon-resonant cavityLucia Di Virgilio0Jaco J. Geuchies1Heejae Kim2Keno Krewer3Hai Wang4Maksim Grechko5Mischa Bonn6Max Planck Institute for Polymer ResearchMax Planck Institute for Polymer ResearchMax Planck Institute for Polymer ResearchMax Planck Institute for Polymer ResearchMax Planck Institute for Polymer ResearchMax Planck Institute for Polymer ResearchMax Planck Institute for Polymer ResearchAbstract Optical cavities, resonant with vibrational or electronic transitions of material within the cavity, enable control of light-matter interaction. Previous studies have reported cavity-induced modifications of chemical reactivity, fluorescence, phase behavior, and charge transport. Here, we explore the effect of resonant cavity-phonon coupling on the transient photoconductivity in a hybrid organic-inorganic perovskite. To this end, we measure the ultrafast photoconductivity response of perovskite in a tunable Fabry–Pérot terahertz cavity, designed to be transparent for optical excitation. The terahertz-cavity field-phonon interaction causes apparent Rabi splitting between the perovskite phonon mode and the cavity mode. We explore whether the cavity-phonon interaction affects the material’s electron-phonon interaction by determining the charge-carrier mobility through photoconductivity. Despite the apparent hybridization of cavity and phonon modes, we show that the perovskite properties in both ground (phonon response) and excited (photoconductive response) states remain unaffected by the tunable light-matter interaction. Yet the response of the integral perovskite-terahertz optical cavity system depends critically on the interaction strength of the cavity with the phonon: the transient terahertz response to optical excitation can be increased up to threefold by tuning the cavity-perovskite interaction strength. These results enable tunable switches and frequency-controlled induced transparency devices.https://doi.org/10.1038/s41377-023-01232-0 |
| spellingShingle | Lucia Di Virgilio Jaco J. Geuchies Heejae Kim Keno Krewer Hai Wang Maksim Grechko Mischa Bonn Controlling the electro-optic response of a semiconducting perovskite coupled to a phonon-resonant cavity Light: Science & Applications |
| title | Controlling the electro-optic response of a semiconducting perovskite coupled to a phonon-resonant cavity |
| title_full | Controlling the electro-optic response of a semiconducting perovskite coupled to a phonon-resonant cavity |
| title_fullStr | Controlling the electro-optic response of a semiconducting perovskite coupled to a phonon-resonant cavity |
| title_full_unstemmed | Controlling the electro-optic response of a semiconducting perovskite coupled to a phonon-resonant cavity |
| title_short | Controlling the electro-optic response of a semiconducting perovskite coupled to a phonon-resonant cavity |
| title_sort | controlling the electro optic response of a semiconducting perovskite coupled to a phonon resonant cavity |
| url | https://doi.org/10.1038/s41377-023-01232-0 |
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