| KLENOVSKÝ, Petr, Jakub VALDHANS, Lucie KREJČÍ, Miroslav VALTR, Petr KLAPETEK a Olga FEDOTOVA. Interplay between multipole expansion of exchange interaction and Coulomb correlation of exciton in colloidal II–VI quantum dots. Electronic Structure. IOP Publishing Ltd, 2022, roč. 4, č. 1, s. 1-12. ISSN 2516-1075. Dostupné z: https://dx.doi.org/10.1088/2516-1075/ac5b7e. |
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@article{1843918,
author = {Klenovský, Petr and Valdhans, Jakub and Krejčí, Lucie and Valtr, Miroslav and Klapetek, Petr and Fedotova, Olga},
article_number = {1},
doi = {http://dx.doi.org/10.1088/2516-1075/ac5b7e},
keywords = {quantum dot; colloidal; multiparticle states; configuration interaction; correlation; AFM; SNOM},
language = {eng},
issn = {2516-1075},
journal = {Electronic Structure},
title = {Interplay between multipole expansion of exchange interaction and Coulomb correlation of exciton in colloidal II–VI quantum dots},
url = {https://iopscience.iop.org/article/10.1088/2516-1075/ac5b7e},
volume = {4},
year = {2022}
}
TY - JOUR
ID - 1843918
AU - Klenovský, Petr - Valdhans, Jakub - Krejčí, Lucie - Valtr, Miroslav - Klapetek, Petr - Fedotova, Olga
PY - 2022
TI - Interplay between multipole expansion of exchange interaction and Coulomb correlation of exciton in colloidal II–VI quantum dots
JF - Electronic Structure
VL - 4
IS - 1
SP - 1-12
EP - 1-12
PB - IOP Publishing Ltd
SN - 25161075
KW - quantum dot
KW - colloidal
KW - multiparticle states
KW - configuration interaction
KW - correlation
KW - AFM
KW - SNOM
UR - https://iopscience.iop.org/article/10.1088/2516-1075/ac5b7e
N2 - We study the effect of Coulomb correlation on the emission properties of the ground state exciton in zincblende CdSe/ZnS core–shell and in wurtzite ZnO quantum dots (QDs). We validate our theory model by comparing results of computed exciton energies of CdSe/ZnS QDs to photoluminescence and scanning near-field optical microscopy measurements. We use that to estimate the diameter of the QDs using a simple model based on infinitely deep quantum well and compare the results with the statistics of the atomic force microscopy scans of CdSe/ZnS dots, obtaining excellent agreement. Thereafter, we compute the energy fine structure of exciton, finding striking difference between properties of zincblende CdSe/ZnS and wurtzite ZnO dots. While in the former the fine structure is dominated by the dipole terms of the multipole expansion of the exchange interaction, in the latter system that is mostly influenced by Coulomb correlation. Furthermore, the correlation sizeably influences also the exciton binding energy and emission radiative rate in ZnO dots.
ER -
KLENOVSKÝ, Petr, Jakub VALDHANS, Lucie KREJČÍ, Miroslav VALTR, Petr KLAPETEK a Olga FEDOTOVA. Interplay between multipole expansion of exchange interaction and Coulomb correlation of exciton in colloidal II–VI quantum dots. \textit{Electronic Structure}. IOP Publishing Ltd, 2022, roč.~4, č.~1, s.~1-12. ISSN~2516-1075. Dostupné z: https://dx.doi.org/10.1088/2516-1075/ac5b7e.
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