Lead halide perovskite nanocrystals: optical properties and nanophotonics

Juan P. Martinez-Pastor; Hamid Pashaei Adl; Setatira Gorji; Juan Navarro-Arenas; Guillermo Muñoz-Matutano; Isaac Suárez; Vladimir S. Chirvony; Andrés F. Gualdrón-Reyes; Iván Mora-Seró

doi:10.1117/12.2595442

1 August 2021 Lead halide perovskite nanocrystals: optical properties and nanophotonics

Juan P. Martinez-Pastor, Hamid Pashaei Adl, Setatira Gorji, Juan Navarro-Arenas, Guillermo Muñoz-Matutano, Isaac Suárez, Vladimir S. Chirvony, Andrés F. Gualdrón-Reyes, Iván Mora-Seró

Author Affiliations +

Proceedings Volume 11800, Low-Dimensional Materials and Devices 2021; 1180013 (2021) https://doi.org/10.1117/12.2595442
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Metal halide perovskites in the form of nanocrystals are highly efficient light emitters at visible-NIR wavelengths. In this work, the optical properties of single nanocrystals and ensembles will be discussed, as also several applications in nanophotonics. At low temperatures, single nanocrystals can be also single photon emitters if blinking and spectral diffusion is conveniently reduced. In the case of nanocrystal assemblies, stimulated emission can be observed with thresholds lower than 10 μJ/cm² under nanosecond laser excitation at low temperatures, whose physical origin is attributed to single exciton recombination. Finally, the coupling of perovskite nanocrystals to the optical modes of hyperbolic metaldielectric metamaterials has been studied and demonstrated an important Purcell enhancement of the exciton radiative emission by more than a factor three for CsPbI3 and around factor two for FAPbI₃ when the distance between the emitters and HMM is 10 nm.

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Juan P. Martinez-Pastor, Hamid Pashaei Adl, Setatira Gorji, Juan Navarro-Arenas, Guillermo Muñoz-Matutano, Isaac Suárez, Vladimir S. Chirvony, Andrés F. Gualdrón-Reyes, and Iván Mora-Seró "Lead halide perovskite nanocrystals: optical properties and nanophotonics", Proc. SPIE 11800, Low-Dimensional Materials and Devices 2021, 1180013 (1 August 2021); https://doi.org/10.1117/12.2595442

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