The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals

The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals

The optical and electronic properties of cesium lead halide perovskite nanocrystals are dictated by the band-edge exciton, whose physics is not elucidated. Here, the authors unveil its fine structure and demonstrate that the ground dark singlet state promotes the creation of biexcitons at low temper...

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Autores principales: Philippe Tamarat, Lei Hou, Jean-Baptiste Trebbia, Abhishek Swarnkar, Louis Biadala, Yann Louyer, Maryna I. Bodnarchuk, Maksym V. Kovalenko, Jacky Even, Brahim Lounis
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Lenguaje:EN
Publicado: Nature Portfolio 2020
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Acceso en línea:https://doaj.org/article/0e88587303554578988db2993be04e79
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spelling oai:doaj.org-article:0e88587303554578988db2993be04e792021-12-02T14:42:12ZThe dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals10.1038/s41467-020-19740-72041-1723https://doaj.org/article/0e88587303554578988db2993be04e792020-11-01T00:00:00Zhttps://doi.org/10.1038/s41467-020-19740-7https://doaj.org/toc/2041-1723The optical and electronic properties of cesium lead halide perovskite nanocrystals are dictated by the band-edge exciton, whose physics is not elucidated. Here, the authors unveil its fine structure and demonstrate that the ground dark singlet state promotes the creation of biexcitons at low temperatures and thus correlated photon pairs.Philippe TamaratLei HouJean-Baptiste TrebbiaAbhishek SwarnkarLouis BiadalaYann LouyerMaryna I. BodnarchukMaksym V. KovalenkoJacky EvenBrahim LounisNature PortfolioarticleScienceQENNature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
institution DOAJ
collection DOAJ
language EN
topic Science
Q
spellingShingle Science
Q
Philippe Tamarat
Lei Hou
Jean-Baptiste Trebbia
Abhishek Swarnkar
Louis Biadala
Yann Louyer
Maryna I. Bodnarchuk
Maksym V. Kovalenko
Jacky Even
Brahim Lounis
The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals
description The optical and electronic properties of cesium lead halide perovskite nanocrystals are dictated by the band-edge exciton, whose physics is not elucidated. Here, the authors unveil its fine structure and demonstrate that the ground dark singlet state promotes the creation of biexcitons at low temperatures and thus correlated photon pairs.
format article
author Philippe Tamarat
Lei Hou
Jean-Baptiste Trebbia
Abhishek Swarnkar
Louis Biadala
Yann Louyer
Maryna I. Bodnarchuk
Maksym V. Kovalenko
Jacky Even
Brahim Lounis
author_facet Philippe Tamarat
Lei Hou
Jean-Baptiste Trebbia
Abhishek Swarnkar
Louis Biadala
Yann Louyer
Maryna I. Bodnarchuk
Maksym V. Kovalenko
Jacky Even
Brahim Lounis
author_sort Philippe Tamarat
title The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals
title_short The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals
title_full The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals
title_fullStr The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals
title_full_unstemmed The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals
title_sort dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals
publisher Nature Portfolio
publishDate 2020
url https://doaj.org/article/0e88587303554578988db2993be04e79
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