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

Science
Hendrik UtzatMoungi G Bawendi

Abstract

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.

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Citations

Sep 4, 2019·Advanced Materials·Wanchun Xiang, Wolfgang Tress
Nov 24, 2019·The Journal of Chemical Physics·Runchen Lai, Kaifeng Wu
Jan 17, 2020·The Journal of Chemical Physics·Ghada H AhmedOmar F Mohammed
Oct 24, 2019·The Journal of Chemical Physics·Zengle CaoMin Xiao
Nov 12, 2020·Physical Chemistry Chemical Physics : PCCP·Taketo HandaYoshihiko Kanemitsu
Nov 28, 2020·Nature Communications·Philippe TamaratBrahim Lounis
Feb 11, 2021·Accounts of Chemical Research·Tian Qiao, Dong Hee Son
Jan 16, 2021·The Journal of Chemical Physics·Kobra N Avanaki, George C Schatz
Nov 15, 2020·The Journal of Chemical Physics·Daniel RossiDong Hee Son
Jan 6, 2021·Nature Communications·Yuze LinJinsong Huang
Dec 30, 2020·Chemical Reviews·Cherie R KaganSarah M Thompson
Mar 18, 2021·Reports on Progress in Physics·Ziming ChenHin-Lap Yip
May 28, 2021·Nature·Ihor CherniukhMaksym V Kovalenko
Jun 3, 2021·Journal of the American Chemical Society·Oliviero CannelliGiulia F Mancini
Jun 18, 2021·ACS Nano·Amrita DeyLakshminarayana Polavarapu
Jul 10, 2021·The Journal of Chemical Physics·Buyang YuMin Xiao
Jun 15, 2021·Chemical Science·Wenbi Shcherbakov-Wu, William A Tisdale
Jul 27, 2021·ACS Nano·Surendra B AnantharamanDeep Jariwala
Aug 7, 2021·Science·F Pelayo García de ArquerEdward H Sargent
Aug 11, 2021·Journal of the American Chemical Society·Anna LoiudiceRaffaella Buonsanti
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Nov 26, 2019·Journal of the American Chemical Society·Franziska KriegMaksym V Kovalenko
Apr 18, 2020·Journal of the American Chemical Society·Mengyu GaoPeidong Yang

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