Systematic study of the emission spectra of nanowire quantum dots

Patrick Laferrière; Edith Yeung; Marek Korkusinski; Philip J. Poole; Robin L. Williams; Dan Dalacu; Jacob Manalo; Moritz Cygorek; Abdulmenaf Altintas; Pawel Hawrylak

doi:10.1063/5.0045880

Systematic study of the emission spectra of nanowire quantum dots

Patrick Laferrière^*, Edith Yeung, Marek Korkusinski, Philip J. Poole, Robin L. Williams, Dan Dalacu, Jacob Manalo, Moritz Cygorek, Abdulmenaf Altintas, Pawel Hawrylak

^*Corresponding author for this work

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Abstract

A systematic study of the emission spectra of single InAsP nanowire quantum dots in position-controlled InP photonic nanowire waveguides is presented. Using excitation power-dependent photoluminescence and correlation measurements, we distinguish between the different excitonic complexes responsible for s-shell emission. From measurements of over 40 nominally identical devices, we obtain a standard deviation of ∼5 meV in the emission energy of excitons, biexcitons, and charged exciton photons. The mean biexciton binding energy was 1.9 meV with a standard deviation of ∼0.8 meV. The experimental spectra are understood using atomistic multi-million atom theory of neutral and charged multi-exciton complexes implemented in the design tool QNANO.

Original language	English
Article number	161107
Journal	Applied Physics Letters
Volume	118
Issue number	16
DOIs	https://doi.org/10.1063/5.0045880
Publication status	Published - 19 Apr 2021

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/5.0045880

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title = "Systematic study of the emission spectra of nanowire quantum dots",

abstract = "A systematic study of the emission spectra of single InAsP nanowire quantum dots in position-controlled InP photonic nanowire waveguides is presented. Using excitation power-dependent photoluminescence and correlation measurements, we distinguish between the different excitonic complexes responsible for s-shell emission. From measurements of over 40 nominally identical devices, we obtain a standard deviation of ∼5 meV in the emission energy of excitons, biexcitons, and charged exciton photons. The mean biexciton binding energy was 1.9 meV with a standard deviation of ∼0.8 meV. The experimental spectra are understood using atomistic multi-million atom theory of neutral and charged multi-exciton complexes implemented in the design tool QNANO.",

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T1 - Systematic study of the emission spectra of nanowire quantum dots

AU - Laferrière, Patrick

AU - Yeung, Edith

AU - Korkusinski, Marek

AU - Poole, Philip J.

AU - Williams, Robin L.

AU - Dalacu, Dan

AU - Manalo, Jacob

AU - Cygorek, Moritz

AU - Altintas, Abdulmenaf

AU - Hawrylak, Pawel

PY - 2021/4/19

Y1 - 2021/4/19

N2 - A systematic study of the emission spectra of single InAsP nanowire quantum dots in position-controlled InP photonic nanowire waveguides is presented. Using excitation power-dependent photoluminescence and correlation measurements, we distinguish between the different excitonic complexes responsible for s-shell emission. From measurements of over 40 nominally identical devices, we obtain a standard deviation of ∼5 meV in the emission energy of excitons, biexcitons, and charged exciton photons. The mean biexciton binding energy was 1.9 meV with a standard deviation of ∼0.8 meV. The experimental spectra are understood using atomistic multi-million atom theory of neutral and charged multi-exciton complexes implemented in the design tool QNANO.

AB - A systematic study of the emission spectra of single InAsP nanowire quantum dots in position-controlled InP photonic nanowire waveguides is presented. Using excitation power-dependent photoluminescence and correlation measurements, we distinguish between the different excitonic complexes responsible for s-shell emission. From measurements of over 40 nominally identical devices, we obtain a standard deviation of ∼5 meV in the emission energy of excitons, biexcitons, and charged exciton photons. The mean biexciton binding energy was 1.9 meV with a standard deviation of ∼0.8 meV. The experimental spectra are understood using atomistic multi-million atom theory of neutral and charged multi-exciton complexes implemented in the design tool QNANO.

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DO - 10.1063/5.0045880

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JO - Applied Physics Letters

JF - Applied Physics Letters

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Systematic study of the emission spectra of nanowire quantum dots

Abstract

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