Carrier Relaxation Dynamics in Lead Sulfide Colloidal Quantum Dots
Emanuel Istrate
1
,
Sjoerd Hoogland
1
,
Vlad Sukhovatkin
1
,
Larissa Levina
1
,
Stefan Myrskog
1
,
Peter W. E. Smith
1
,
Edward H Sargent
1
Publication type: Journal Article
Publication date: 2008-02-15
scimago Q1
wos Q3
SJR: 0.742
CiteScore: 5.3
Impact factor: 2.9
ISSN: 15206106, 15205207, 10895647
PubMed ID:
18275180
Materials Chemistry
Surfaces, Coatings and Films
Physical and Theoretical Chemistry
Abstract
We report transient absorption saturation measurements on lead sulfide colloidal nanocrystals at the first and second exciton energies and fit the results to a model incorporating intraband and interband relaxation processes. We study in detail the Auger recombination from the first excited state, which takes place when more than one electron−hole pair is excited in a dot. We find an Auger coefficient of 4.5 × 10-30 cm6/s for dots of 5.5 nm diameter, and observe saturation of the absorption bleaching when the (8-fold degenerate) first level is filled. We develop a model for the absorption dynamics using Poisson statistics and find a good fit with our experimental measurements.
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41
Total citations:
41
Citations from 2024:
2
(4.88%)
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GOST
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Istrate E. et al. Carrier Relaxation Dynamics in Lead Sulfide Colloidal Quantum Dots // Journal of Physical Chemistry B. 2008. Vol. 112. No. 10. pp. 2757-2760.
GOST all authors (up to 50)
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Istrate E., Hoogland S., Sukhovatkin V., Levina L., Myrskog S., Smith P. W. E., Sargent E. H. Carrier Relaxation Dynamics in Lead Sulfide Colloidal Quantum Dots // Journal of Physical Chemistry B. 2008. Vol. 112. No. 10. pp. 2757-2760.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/jp076809g
UR - https://doi.org/10.1021/jp076809g
TI - Carrier Relaxation Dynamics in Lead Sulfide Colloidal Quantum Dots
T2 - Journal of Physical Chemistry B
AU - Istrate, Emanuel
AU - Hoogland, Sjoerd
AU - Sukhovatkin, Vlad
AU - Levina, Larissa
AU - Myrskog, Stefan
AU - Smith, Peter W. E.
AU - Sargent, Edward H
PY - 2008
DA - 2008/02/15
PB - American Chemical Society (ACS)
SP - 2757-2760
IS - 10
VL - 112
PMID - 18275180
SN - 1520-6106
SN - 1520-5207
SN - 1089-5647
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2008_Istrate,
author = {Emanuel Istrate and Sjoerd Hoogland and Vlad Sukhovatkin and Larissa Levina and Stefan Myrskog and Peter W. E. Smith and Edward H Sargent},
title = {Carrier Relaxation Dynamics in Lead Sulfide Colloidal Quantum Dots},
journal = {Journal of Physical Chemistry B},
year = {2008},
volume = {112},
publisher = {American Chemical Society (ACS)},
month = {feb},
url = {https://doi.org/10.1021/jp076809g},
number = {10},
pages = {2757--2760},
doi = {10.1021/jp076809g}
}
Cite this
MLA
Copy
Istrate, Emanuel, et al. “Carrier Relaxation Dynamics in Lead Sulfide Colloidal Quantum Dots.” Journal of Physical Chemistry B, vol. 112, no. 10, Feb. 2008, pp. 2757-2760. https://doi.org/10.1021/jp076809g.