Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Size dependence of Eu2+ fluorescence in ZnS:Eu2+ nanoparticles

Chen, W ; Malm, Jan-Olle LU ; Zwiller, Valéry LU ; Wallenberg, R LU and Bovin, Jan-Olov LU (2001) In Journal of Applied Physics 89(5). p.2671-2675
Abstract
The emission bands of the 4.2, 3.2 and 2.6 nm sized ZnS:Eu2+ nanoparticles are peaking at 670, 580 and 520 nm, respectively. The emission of the 4.2 nm sized nanoparticles originates from the recombination of the Eu2+-bound exciton, while the emission of the 3.2 and 2.6 nm sized nanoparticles is from the Eu2+ intra-ion transition of 4f(6)5d(1)(t(2g))-4f(7). Possible mechanisms for the size dependence of the 4f(6)5d(1)(t(2g))-4f(7) transition of Eu2+ in ZnS:Eu2+ nanoparticles were investigated, and it was concluded that the decreases in the electron-phonon coupling and in crystal field strength upon a decrease in size are the two major factors responsible for the shift. (C) 2001 American Institute of Physics.
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Applied Physics
volume
89
issue
5
pages
5 pages
publisher
American Institute of Physics (AIP)
external identifiers
  • scopus:0001220406
ISSN
0021-8979
DOI
10.1063/1.1344582
language
English
LU publication?
yes
id
3dc31b15-7ae7-4323-ade3-602e3809c0b8
date added to LUP
2023-10-31 16:32:07
date last changed
2023-11-02 10:29:16
@article{3dc31b15-7ae7-4323-ade3-602e3809c0b8,
  abstract     = {{The emission bands of the 4.2, 3.2 and 2.6 nm sized ZnS:Eu2+ nanoparticles are peaking at 670, 580 and 520 nm, respectively. The emission of the 4.2 nm sized nanoparticles originates from the recombination of the Eu2+-bound exciton, while the emission of the 3.2 and 2.6 nm sized nanoparticles is from the Eu2+ intra-ion transition of 4f(6)5d(1)(t(2g))-4f(7). Possible mechanisms for the size dependence of the 4f(6)5d(1)(t(2g))-4f(7) transition of Eu2+ in ZnS:Eu2+ nanoparticles were investigated, and it was concluded that the decreases in the electron-phonon coupling and in crystal field strength upon a decrease in size are the two major factors responsible for the shift. (C) 2001 American Institute of Physics.}},
  author       = {{Chen, W and Malm, Jan-Olle and Zwiller, Valéry and Wallenberg, R and Bovin, Jan-Olov}},
  issn         = {{0021-8979}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{5}},
  pages        = {{2671--2675}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Journal of Applied Physics}},
  title        = {{Size dependence of Eu<sup>2+</sup> fluorescence in ZnS:Eu<sup>2+</sup> nanoparticles}},
  url          = {{http://dx.doi.org/10.1063/1.1344582}},
  doi          = {{10.1063/1.1344582}},
  volume       = {{89}},
  year         = {{2001}},
}