Publication: Chiral electroluminescence from thin-film perovskite metacavities
Дата
2023
Авторы
Journal Title
Journal ISSN
Volume Title
Издатель
Аннотация
Chiral light sources realized in ultracompact device platforms are highly desirable for various applications. Among active media used for thin-film emission devices, lead-halide perovskites have been extensively studied for photoluminescence due to their exceptional properties. However, up to date, there have been no demonstrations of chiral electroluminescence with a substantial degree of circular polarization (DCP) based on perovskite materials, being critical for the development of practical devices. Here, we propose a concept of chiral light sources based on a thin-film perovskite metacavity and experimentally demonstrate chiral electroluminescence with a peak DCP approaching 0.38. We design a metacavity created by a metal and a dielectric metasurface supporting photonic eigenstates with a close-to-maximum chiral response. Chiral cavity modes facilitate asymmetric electroluminescence of pairs of left and right circularly polarized waves propagating in the opposite oblique directions. The proposed ultracompact light sources are especially advantageous for many applications requiring chiral light beams of both helicities.
Описание
Ключевые слова
Chiral Metamaterials , Dielectric Metasurfaces , Perovskite Solar Cells
Цитирование
Chiral electroluminescence from thin-film perovskite metacavities / Kim, S. [et al.] // Science advances. - 2023. - 9. - № 26. - 10.1126/sciadv.adh0414
URI
https://www.doi.org/10.1126/sciadv.adh0414
https://www.scopus.com/record/display.uri?eid=2-s2.0-85163648320&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:001029333400009
https://openrepository.mephi.ru/handle/123456789/30242
https://www.scopus.com/record/display.uri?eid=2-s2.0-85163648320&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:001029333400009
https://openrepository.mephi.ru/handle/123456789/30242