6533b854fe1ef96bd12ae202
RESEARCH PRODUCT
Purcell Enhancement and Wavelength Shift of Emitted Light by CsPbI3 Perovskite Nanocrystals Coupled to Hyperbolic Metamaterials
Jesús Hernández-sazLuisa M ValenciaJuan P. Martínez-pastorMojtaba Karimi HabilAndrés F. Gualdrón-reyesSetatira GorjiIván Mora-seróSergio I. MolinaMaria De La MataHamid Pashaei AdlIsaac SuárezVladimir S. ChirvonyCarlos J. Zapata-rodríguezsubject
light−matter interactionMaterials scienceperovskite nanocrystalsExcitonphotonicsPhysics::Optics02 engineering and technologyDielectricPurcell effectPurcell factor01 natural sciences7. Clean energyMolecular physics010309 opticsCondensed Matter::Materials Science0103 physical sciencesSpontaneous emissionEmission spectrumElectrical and Electronic EngineeringPerovskite (structure)business.industryCondensed Matter::Otherlight-matter interactionMetamaterial021001 nanoscience & nanotechnologyCondensed Matter::Mesoscopic Systems and Quantum Hall EffectAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslead halide perovskiteshyperbolic metamaterials (HMMs)Photonics0210 nano-technologybusinessBiotechnologydescription
Manipulation of the exciton emission rate in nanocrystals of lead halide perovskites (LHPs) was demonstrated by means of coupling of excitons with a hyperbolic metamaterial (HMM) consisting of alternating thin metal (Ag) and dielectric (LiF) layers. Such a coupling is found to induce an increase of the exciton radiative recombination rate by more than a factor of three due to the Purcell effect when the distance between the quantum emitter and HMM is nominally as small as 10 nm, which coincides well with the results of our theoretical analysis. Besides, an effect of the coupling-induced long wavelength shift of the exciton emission spectrum is detected and modeled. These results can be of interest for quantum information applications of single emitters on the basis of perovskite nanocrystals with high photon emission rates.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-01 |