Nano Letters, volume 20, issue 12, pages 8897-8902
Exciton Fine Structure in Lead Chalcogenide Quantum Dots: Valley Mixing and Crucial Role of Intervalley Electron–Hole Exchange
2
Department of Physics, Jackson State University, Jackson, Mississippi 39217, United States
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Publication type: Journal Article
Publication date: 2020-11-10
Journal:
Nano Letters
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 10.8
ISSN: 15306984, 15306992
General Chemistry
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Bioengineering
Abstract
We study the exciton fine structure in quantum dots of multivalley lead chalcogenides. We demonstrate that intervalley electron-hole exchange interaction, ignored in previous studies, dramatically modifies the exciton fine structure and leads to appearance of the ultrabright valley-symmetric spin-triplet exciton state dominating interband optical absorption. Valley mixing leads to brightening of other symmetry-allowed spin-triplet states which dominate low-temperature photoluminescence.
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6 publications, 60%
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2 publications, 20%
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- We do not take into account publications without a DOI.
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Avdeev I. D. et al. Exciton Fine Structure in Lead Chalcogenide Quantum Dots: Valley Mixing and Crucial Role of Intervalley Electron–Hole Exchange // Nano Letters. 2020. Vol. 20. No. 12. pp. 8897-8902.
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Avdeev I. D., Nestoklon M. O., Goupalov S. Exciton Fine Structure in Lead Chalcogenide Quantum Dots: Valley Mixing and Crucial Role of Intervalley Electron–Hole Exchange // Nano Letters. 2020. Vol. 20. No. 12. pp. 8897-8902.
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TY - JOUR
DO - 10.1021/acs.nanolett.0c03937
UR - https://doi.org/10.1021/acs.nanolett.0c03937
TI - Exciton Fine Structure in Lead Chalcogenide Quantum Dots: Valley Mixing and Crucial Role of Intervalley Electron–Hole Exchange
T2 - Nano Letters
AU - Avdeev, I. D.
AU - Nestoklon, M. O.
AU - Goupalov, Serguei
PY - 2020
DA - 2020/11/10 00:00:00
PB - American Chemical Society (ACS)
SP - 8897-8902
IS - 12
VL - 20
SN - 1530-6984
SN - 1530-6992
ER -
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@article{2020_Avdeev,
author = {I. D. Avdeev and M. O. Nestoklon and Serguei Goupalov},
title = {Exciton Fine Structure in Lead Chalcogenide Quantum Dots: Valley Mixing and Crucial Role of Intervalley Electron–Hole Exchange},
journal = {Nano Letters},
year = {2020},
volume = {20},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/acs.nanolett.0c03937},
number = {12},
pages = {8897--8902},
doi = {10.1021/acs.nanolett.0c03937}
}
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MLA
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Avdeev, I. D., et al. “Exciton Fine Structure in Lead Chalcogenide Quantum Dots: Valley Mixing and Crucial Role of Intervalley Electron–Hole Exchange.” Nano Letters, vol. 20, no. 12, Nov. 2020, pp. 8897-8902. https://doi.org/10.1021/acs.nanolett.0c03937.