Tunable Hybrid Fano Resonances in Halide Perovskite Nanoparticles
Artikel i vetenskaplig tidskrift, 2018
© 2018 American Chemical Society. Halide perovskites are known to support excitons at room temperatures with high quantum yield of luminescence that make them attractive for all-dielectric resonant nanophotonics and meta-optics. Here we report the observation of broadly tunable Fano resonances in halide perovskite nanoparticles originating from the coupling of excitons to the Mie resonances excited in the nanoparticles. Signatures of the photon-exciton ("hybrid") Fano resonances are observed in dark-field spectra of isolated nanoparticles, and also in the extinction spectra of aperiodic lattices of such nanoparticles. In the latter case, chemical tunability of the exciton resonance allows reversible tuning of the Fano resonance across the 100 nm bandwidth in the visible frequency range, providing a novel approach to control optical properties of perovskite nanostructures. The proposed method of chemical tuning paves the way to an efficient control of emission properties of on-chip-integrated light-emitting nanoantennas.
excitons
Mie resonances
Fano resonance
nanophotonics
halide perovskites
Författare
Ekaterina Y. Tiguntseva
ITMO University
Denis Baranov
ITMO University
Chalmers, Fysik, Bionanofotonik
Anatoly P. Pushkarev
ITMO University
Battulga Munkhbat
Chalmers, Fysik, Bionanofotonik
Filipp Komissarenko
ITMO University
Marius Franckevičius
Fiziniu ir Technologijos Mokslu Centras
Anvar A. Zakhidov
ITMO University
University of Texas
Timur Shegai
Chalmers, Fysik, Bionanofotonik
Yuri S. Kivshar
ITMO University
Australian National University
S. Makarov
ITMO University
Nano Letters
1530-6984 (ISSN) 1530-6992 (eISSN)
Vol. 18 9 5522-5529Ämneskategorier (SSIF 2011)
Atom- och molekylfysik och optik
Annan fysik
Den kondenserade materiens fysik
DOI
10.1021/acs.nanolett.8b01912