Applied Physics Letters, volume 107, issue 2, pages 22106
Temperature dependence of the fundamental excitonic resonance in lead-salt quantum dots
3
Institut für Angewandte Photonik e.V. Rudower Chaussee 29/31 3 , 12489 Berlin, Germany
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4
Universidad Nacional Autónoma de México 4 Instituto de Ciencias Físicas, , Cuernavaca, Morelos 62210, Mexico and , Wayne, Ohio 43466, USA
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Ullrich Photoincs LLC 4 Instituto de Ciencias Físicas, , Cuernavaca, Morelos 62210, Mexico and , Wayne, Ohio 43466, USA
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Shanghai Institute of Technical Physics 5 National Laboratory for Infrared Physics, , 500 Yutian Rd, Shanghai 200083, China
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Publication type: Journal Article
Publication date: 2015-07-13
Journal:
Applied Physics Letters
Q1
Q2
SJR: 0.976
CiteScore: 6.4
Impact factor: 3.5
ISSN: 00036951, 10773118
Physics and Astronomy (miscellaneous)
Abstract
The temperature dependences of the fundamental excitonic resonance in PbS and PbSe quantum dots fabricated by various technologies are experimentally determined. Above ∼150 K, sub-linearities of the temperature shifts and halfwidths are observed. This behavior is analyzed within the existing standard models. Concordant modeling, however, becomes possible only within the frame of a three-level system that takes into account both bright and dark excitonic states as well as phonon-assisted carrier redistribution between these states. Our results show that luminescence characterization of lead-salt quantum dots necessarily requires both low temperatures and excitation densities in order to provide reliable ensemble parameters.
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Yue F. et al. Temperature dependence of the fundamental excitonic resonance in lead-salt quantum dots // Applied Physics Letters. 2015. Vol. 107. No. 2. p. 22106.
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Yue F., Tomm J., Kruschke D., Ullrich B., CHU J. Temperature dependence of the fundamental excitonic resonance in lead-salt quantum dots // Applied Physics Letters. 2015. Vol. 107. No. 2. p. 22106.
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TY - JOUR
DO - 10.1063/1.4926806
UR - https://doi.org/10.1063/1.4926806
TI - Temperature dependence of the fundamental excitonic resonance in lead-salt quantum dots
T2 - Applied Physics Letters
AU - Yue, Fangyu
AU - Tomm, Jens
AU - Kruschke, Detlef
AU - Ullrich, Bruno
AU - CHU, JUNHAO
PY - 2015
DA - 2015/07/13
PB - AIP Publishing
SP - 22106
IS - 2
VL - 107
SN - 0003-6951
SN - 1077-3118
ER -
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BibTex (up to 50 authors)
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@article{2015_Yue,
author = {Fangyu Yue and Jens Tomm and Detlef Kruschke and Bruno Ullrich and JUNHAO CHU},
title = {Temperature dependence of the fundamental excitonic resonance in lead-salt quantum dots},
journal = {Applied Physics Letters},
year = {2015},
volume = {107},
publisher = {AIP Publishing},
month = {jul},
url = {https://doi.org/10.1063/1.4926806},
number = {2},
pages = {22106},
doi = {10.1063/1.4926806}
}
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MLA
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Yue, Fangyu, et al. “Temperature dependence of the fundamental excitonic resonance in lead-salt quantum dots.” Applied Physics Letters, vol. 107, no. 2, Jul. 2015, p. 22106. https://doi.org/10.1063/1.4926806.