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Optical properties of PbS/CdS core/shell quantum dots

Yolanda Justo Zarraquiños, Pieter Geiregat UGent, Karen Van Hoecke, Frank Vanhaecke UGent, Celso De Mello Donega and Zeger Hens UGent (2013) JOURNAL OF PHYSICAL CHEMISTRY C. 117(39). p.20171-20177
abstract
We determine the optical properties of PbS/CdS core/shell QDs, addressing the energy and the oscillator strength of the first exciton transition and the intrinsic absorption coefficient at short wavelengths. It follows that the intrinsic absorption coefficient at wavelengths of 350 and 400 nm agrees with theoretical numbers predicted using the Maxwell-Garnett model. Moreover, close correspondence is demonstrated between the energy and the oscillator strength of the first exciton transition of PbS/CdS core/shell and PbS QDs with a similar core size. This provides a straightforward, way to estimate the PbS core diameter in PbS/CdS core/shell quantum dots by means of the PbS sizing curve, and it indicates that PbS/CdS QDs exhibit a type 1 band alignment.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
SEMICONDUCTOR NANOCRYSTALS, LIGHT-EMITTING-DIODES, PBSE/CDSE CORE/SHELL, CATION-EXCHANGE, EMISSION, SHELL, PHOTOLUMINESCENCE, CDSE, PBSE, HETEROSTRUCTURES
journal title
JOURNAL OF PHYSICAL CHEMISTRY C
J. Phys. Chem. C
volume
117
issue
39
pages
20171 - 20177
Web of Science type
Article
Web of Science id
000326300700044
JCR category
MATERIALS SCIENCE, MULTIDISCIPLINARY
JCR impact factor
4.835 (2013)
JCR rank
29/251 (2013)
JCR quartile
1 (2013)
ISSN
1932-7447
DOI
10.1021/jp406774p
project
Center for nano- and biophotonics (NB-Photonics)
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4225574
handle
http://hdl.handle.net/1854/LU-4225574
date created
2014-01-08 21:07:38
date last changed
2018-01-29 12:13:03
@article{4225574,
  abstract     = {We determine the optical properties of PbS/CdS core/shell QDs, addressing the energy and the oscillator strength of the first exciton transition and the intrinsic absorption coefficient at short wavelengths. It follows that the intrinsic absorption coefficient at wavelengths of 350 and 400 nm agrees with theoretical numbers predicted using the Maxwell-Garnett model. Moreover, close correspondence is demonstrated between the energy and the oscillator strength of the first exciton transition of PbS/CdS core/shell and PbS QDs with a similar core size. This provides a straightforward, way to estimate the PbS core diameter in PbS/CdS core/shell quantum dots by means of the PbS sizing curve, and it indicates that PbS/CdS QDs exhibit a type 1 band alignment.},
  author       = {Justo Zarraqui{\~n}os, Yolanda and Geiregat, Pieter and Van Hoecke, Karen and Vanhaecke, Frank and Donega, Celso De Mello and Hens, Zeger},
  issn         = {1932-7447},
  journal      = {JOURNAL OF PHYSICAL CHEMISTRY C},
  keyword      = {SEMICONDUCTOR NANOCRYSTALS,LIGHT-EMITTING-DIODES,PBSE/CDSE CORE/SHELL,CATION-EXCHANGE,EMISSION,SHELL,PHOTOLUMINESCENCE,CDSE,PBSE,HETEROSTRUCTURES},
  language     = {eng},
  number       = {39},
  pages        = {20171--20177},
  title        = {Optical properties of PbS/CdS core/shell quantum dots},
  url          = {http://dx.doi.org/10.1021/jp406774p},
  volume       = {117},
  year         = {2013},
}

Chicago
Justo Zarraquiños, Yolanda, Pieter Geiregat, Karen Van Hoecke, Frank Vanhaecke, Celso De Mello Donega, and Zeger Hens. 2013. “Optical Properties of PbS/CdS Core/shell Quantum Dots.” Journal of Physical Chemistry C 117 (39): 20171–20177.
APA
Justo Zarraquiños, Y., Geiregat, P., Van Hoecke, K., Vanhaecke, F., Donega, C. D. M., & Hens, Z. (2013). Optical properties of PbS/CdS core/shell quantum dots. JOURNAL OF PHYSICAL CHEMISTRY C, 117(39), 20171–20177.
Vancouver
1.
Justo Zarraquiños Y, Geiregat P, Van Hoecke K, Vanhaecke F, Donega CDM, Hens Z. Optical properties of PbS/CdS core/shell quantum dots. JOURNAL OF PHYSICAL CHEMISTRY C. 2013;117(39):20171–7.
MLA
Justo Zarraquiños, Yolanda, Pieter Geiregat, Karen Van Hoecke, et al. “Optical Properties of PbS/CdS Core/shell Quantum Dots.” JOURNAL OF PHYSICAL CHEMISTRY C 117.39 (2013): 20171–20177. Print.