| KLENOVSKÝ, Petr, Petr STEINDL and Dominique GEFFROY. Excitonic structure and pumping power dependent emission blue-shift of type-II quantum dots. Scientific Reports. London: Nature Publishing Group, 2017, vol. 7, March, p. nestránkováno, 10 pp. ISSN 2045-2322. Available from: https://dx.doi.org/10.1038/srep45568. |
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@article{1376957,
author = {Klenovský, Petr and Steindl, Petr and Geffroy, Dominique},
article_location = {London},
article_number = {March},
doi = {http://dx.doi.org/10.1038/srep45568},
keywords = {multi-particle states; configuration interaction; photoluminescence; quantum dots},
language = {eng},
issn = {2045-2322},
journal = {Scientific Reports},
title = {Excitonic structure and pumping power dependent emission blue-shift of type-II quantum dots},
url = {http://www.nature.com/articles/srep45568},
volume = {7},
year = {2017}
}
TY - JOUR
ID - 1376957
AU - Klenovský, Petr - Steindl, Petr - Geffroy, Dominique
PY - 2017
TI - Excitonic structure and pumping power dependent emission blue-shift of type-II quantum dots
JF - Scientific Reports
VL - 7
IS - March
SP - nestránkováno
EP - nestránkováno
PB - Nature Publishing Group
SN - 20452322
KW - multi-particle states
KW - configuration interaction
KW - photoluminescence
KW - quantum dots
UR - http://www.nature.com/articles/srep45568
L2 - http://www.nature.com/articles/srep45568
N2 - In this work we study theoretically and experimentally the multi-particle structure of the so-called type-II quantum dots with spatially separated electrons and holes. Our calculations based on customarily developed full configuration interaction approach reveal that exciton complexes containing holes interacting with two or more electrons exhibit fairly large antibinding energies. This effect is found to be the hallmark of the type-II confinement. In addition, an approximate self-consistent solution of the multi-exciton problem allows us to explain two pronounced phenomena: the blue-shift of the emission with pumping and the large inhomogeneous spectral broadening, both of those eluding explanation so far. The results are confirmed by detailed intensity and polarization resolved photoluminescence measurements on a number of type-II samples.
ER -
KLENOVSKÝ, Petr, Petr STEINDL and Dominique GEFFROY. Excitonic structure and pumping power dependent emission blue-shift of type-II quantum dots. \textit{Scientific Reports}. London: Nature Publishing Group, 2017, vol.~7, March, p.~nestránkováno, 10 pp. ISSN~2045-2322. Available from: https://dx.doi.org/10.1038/srep45568.
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