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Coherent single-photon emission from colloidal lead halide perovskite quantum dots

Utzat, Hendrik ; Sun, Weiwei ; Kaplan, Alexander E K ; Krieg, Franziska ; Ginterseder, Matthias ; Spokoyny, Boris ; Klein, Nathan D ; Shulenberger, Katherine E ; Perkinson, Collin F ; Kovalenko, Maksym V ; Bawendi, Moungi G

Science (American Association for the Advancement of Science), 2019-03, Vol.363 (6431), p.1068-1072 [Periódico revisado por pares]

United States: The American Association for the Advancement of Science

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Título:
Coherent single-photon emission from colloidal lead halide perovskite quantum dots
Autor: Utzat, Hendrik ; Sun, Weiwei ; Kaplan, Alexander E K ; Krieg, Franziska ; Ginterseder, Matthias ; Spokoyny, Boris ; Klein, Nathan D ; Shulenberger, Katherine E ; Perkinson, Collin F ; Kovalenko, Maksym V ; Bawendi, Moungi G
Assuntos: Coherence length ; Colloid chemistry ; Colloiding ; Data processing ; Diamonds ; Emissions ; Emissions control ; Emitters ; Epitaxial growth ; Information processing ; Lead ; Light emission ; Molecular beam epitaxy ; Optics ; Organic chemistry ; Perovskites ; Photon emission ; Photons ; Quantum dots ; Quantum optics ; Quantum phenomena ; Quantum theory ; Reproducibility ; Spectral emittance
É parte de: Science (American Association for the Advancement of Science), 2019-03, Vol.363 (6431), p.1068-1072
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
USDOE
FG02-07ER46454; SC0001088; CTI-No. 18614.1 PFNM-NM
Descrição: Chemically made colloidal semiconductor quantum dots have long been proposed as scalable and color-tunable single emitters in quantum optics, but they have typically suffered from prohibitively incoherent emission. We now demonstrate that individual colloidal lead halide perovskite quantum dots (PQDs) display highly efficient single-photon emission with optical coherence times as long as 80 picoseconds, an appreciable fraction of their 210-picosecond radiative lifetimes. These measurements suggest that PQDs should be explored as building blocks in sources of indistinguishable single photons and entangled photon pairs. Our results present a starting point for the rational design of lead halide perovskite-based quantum emitters that have fast emission, wide spectral tunability, and scalable production and that benefit from the hybrid integration with nanophotonic components that has been demonstrated for colloidal materials.
Editor: United States: The American Association for the Advancement of Science
Idioma: Inglês

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Coherent single-photon emission from colloidal lead halide perovskite quantum dots

Utzat, Hendrik ; Sun, Weiwei ; Kaplan, Alexander E K ; Krieg, Franziska ; Ginterseder, Matthias ; Spokoyny, Boris ; Klein, Nathan D ; Shulenberger, Katherine E ; Perkinson, Collin F ; Kovalenko, Maksym V ; Bawendi, Moungi G

United States: The American Association for the Advancement of Science

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