Ghent University Academic Bibliography

Advanced

Langmuir-Blodgett monolayers of colloidal lead chalcogenide quantum dots: morphology and photoluminescence

Yolanda Justo Zarraquiños UGent, Iwan Moreels UGent, Karel Lambert UGent and Zeger Hens UGent (2010) NANOTECHNOLOGY. 21(29).
abstract
Monolayers of PbSe and PbS quantum dots and PbSe/CdSe core/shell quantum dots made by Langmuir-Blodgett deposition are compared, with a focus on the formation, the morphology and the photoluminescence properties of the films. It is shown that PbSe quantum dots suffer from oriented attachment and a complete quenching of their photoluminescence after Langmuir-Blodgett processing. While the oriented attachment can be resolved by growing a CdSe shell around the PbSe core QDs, the photoluminescence of PbSe/CdSe Langmuir-Blodgett monolayers remains largely quenched. In the case of PbS quantum dots, the formation of a close-packed monolayer is more difficult, yet the resulting films show no sign of oriented attachment and their photoluminescence is comparable to that of the original, suspended quantum dots. In spite of their slow oxidation in a matter of weeks, these results mark PbS quantum dots as the preferred material for light-emitting applications in the near IR based on Langmuir-Blodgett monolayers of lead chalcogenide quantum dots.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
PHOTOVOLTAICS, EVAPORATION, NANOPARTICLES, SUPERLATTICES, OPTICAL GAIN, PBSE NANOCRYSTALS, SEMICONDUCTOR NANOCRYSTALS, ORIENTED ATTACHMENT, PARTICLES, EMISSION
journal title
NANOTECHNOLOGY
Nanotechnology
volume
21
issue
29
article_number
295606
pages
6 pages
Web of Science type
Article
Web of Science id
000279459300017
JCR category
MATERIALS SCIENCE, MULTIDISCIPLINARY
JCR impact factor
3.644 (2010)
JCR rank
30/219 (2010)
JCR quartile
1 (2010)
ISSN
0957-4484
DOI
10.1088/0957-4484/21/29/295606
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1044648
handle
http://hdl.handle.net/1854/LU-1044648
date created
2010-09-22 13:58:04
date last changed
2010-09-24 15:01:50
@article{1044648,
  abstract     = {Monolayers of PbSe and PbS quantum dots and PbSe/CdSe core/shell quantum dots made by Langmuir-Blodgett deposition are compared, with a focus on the formation, the morphology and the photoluminescence properties of the films. It is shown that PbSe quantum dots suffer from oriented attachment and a complete quenching of their photoluminescence after Langmuir-Blodgett processing. While the oriented attachment can be resolved by growing a CdSe shell around the PbSe core QDs, the photoluminescence of PbSe/CdSe Langmuir-Blodgett monolayers remains largely quenched. In the case of PbS quantum dots, the formation of a close-packed monolayer is more difficult, yet the resulting films show no sign of oriented attachment and their photoluminescence is comparable to that of the original, suspended quantum dots. In spite of their slow oxidation in a matter of weeks, these results mark PbS quantum dots as the preferred material for light-emitting applications in the near IR based on Langmuir-Blodgett monolayers of lead chalcogenide quantum dots.},
  articleno    = {295606},
  author       = {Justo Zarraqui{\~n}os, Yolanda and Moreels, Iwan and Lambert, Karel and Hens, Zeger},
  issn         = {0957-4484},
  journal      = {NANOTECHNOLOGY},
  keyword      = {PHOTOVOLTAICS,EVAPORATION,NANOPARTICLES,SUPERLATTICES,OPTICAL GAIN,PBSE NANOCRYSTALS,SEMICONDUCTOR NANOCRYSTALS,ORIENTED ATTACHMENT,PARTICLES,EMISSION},
  language     = {eng},
  number       = {29},
  pages        = {6},
  title        = {Langmuir-Blodgett monolayers of colloidal lead chalcogenide quantum dots: morphology and photoluminescence},
  url          = {http://dx.doi.org/10.1088/0957-4484/21/29/295606},
  volume       = {21},
  year         = {2010},
}

Chicago
Justo Zarraquiños, Yolanda, Iwan Moreels, Karel Lambert, and Zeger Hens. 2010. “Langmuir-Blodgett Monolayers of Colloidal Lead Chalcogenide Quantum Dots: Morphology and Photoluminescence.” Nanotechnology 21 (29).
APA
Justo Zarraquiños, Y., Moreels, I., Lambert, K., & Hens, Z. (2010). Langmuir-Blodgett monolayers of colloidal lead chalcogenide quantum dots: morphology and photoluminescence. NANOTECHNOLOGY, 21(29).
Vancouver
1.
Justo Zarraquiños Y, Moreels I, Lambert K, Hens Z. Langmuir-Blodgett monolayers of colloidal lead chalcogenide quantum dots: morphology and photoluminescence. NANOTECHNOLOGY. 2010;21(29).
MLA
Justo Zarraquiños, Yolanda, Iwan Moreels, Karel Lambert, et al. “Langmuir-Blodgett Monolayers of Colloidal Lead Chalcogenide Quantum Dots: Morphology and Photoluminescence.” NANOTECHNOLOGY 21.29 (2010): n. pag. Print.