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Luminescence study of pure and Fe- or Mo-doped ZnWO4 crystals

Nagirnyi, V; Jönsson, Leif LU ; Kirm, M; Kotlov, A; Lushchik, A; Martinson, Indrek LU ; Watterich, A and Zadneprovski, BI (2004) In Radiation Measurements 38(4-6). p.519-522
Abstract
ZnWO4, ZnWO4 : Fe and ZnWO4 : Mo crystals were investigated by the methods of time-resolved spectroscopy in the temperature range of 4.2-300 K. It is shown that the Mo and Fe impurities significantly reduce the light yield of ZnWO4. The main 2.5 eV emission of ZnWO4 and the 1.77 eV emission band of ZnWO4 : Mo are shown to originate from the triplet excited state of the WO6 and MoO6 complex, respectively. In ZnWO4 : Fe,Mo the MoO6 emission band is shifted to lower energies due to the perturbing influence of the iron impurity. No perturbing effect of Fe or Mo ions was observed for the main emission of ZnWO4 : Fe and ZnWO4 : Mo. The creation spectrum of self-trapped holes was measured for ZnWO4, ZnWO4 : Fe and ZnWO4 : Mo crystals in the... (More)
ZnWO4, ZnWO4 : Fe and ZnWO4 : Mo crystals were investigated by the methods of time-resolved spectroscopy in the temperature range of 4.2-300 K. It is shown that the Mo and Fe impurities significantly reduce the light yield of ZnWO4. The main 2.5 eV emission of ZnWO4 and the 1.77 eV emission band of ZnWO4 : Mo are shown to originate from the triplet excited state of the WO6 and MoO6 complex, respectively. In ZnWO4 : Fe,Mo the MoO6 emission band is shifted to lower energies due to the perturbing influence of the iron impurity. No perturbing effect of Fe or Mo ions was observed for the main emission of ZnWO4 : Fe and ZnWO4 : Mo. The creation spectrum of self-trapped holes was measured for ZnWO4, ZnWO4 : Fe and ZnWO4 : Mo crystals in the energy region of 4-30 eV. (C) 2004 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
triplet states, decay kinetics, ZnWO4, scintillators, self-trapped holes
in
Radiation Measurements
volume
38
issue
4-6
pages
519 - 522
publisher
Elsevier
external identifiers
  • wos:000223807600042
  • scopus:4344606262
ISSN
1879-0925
DOI
10.1016/j.radmeas.2004.01.024
language
English
LU publication?
yes
id
fc70baa4-ff8e-47f1-bbda-922c00e4523a (old id 267261)
date added to LUP
2007-10-29 08:31:34
date last changed
2017-10-29 03:35:09
@article{fc70baa4-ff8e-47f1-bbda-922c00e4523a,
  abstract     = {ZnWO4, ZnWO4 : Fe and ZnWO4 : Mo crystals were investigated by the methods of time-resolved spectroscopy in the temperature range of 4.2-300 K. It is shown that the Mo and Fe impurities significantly reduce the light yield of ZnWO4. The main 2.5 eV emission of ZnWO4 and the 1.77 eV emission band of ZnWO4 : Mo are shown to originate from the triplet excited state of the WO6 and MoO6 complex, respectively. In ZnWO4 : Fe,Mo the MoO6 emission band is shifted to lower energies due to the perturbing influence of the iron impurity. No perturbing effect of Fe or Mo ions was observed for the main emission of ZnWO4 : Fe and ZnWO4 : Mo. The creation spectrum of self-trapped holes was measured for ZnWO4, ZnWO4 : Fe and ZnWO4 : Mo crystals in the energy region of 4-30 eV. (C) 2004 Elsevier Ltd. All rights reserved.},
  author       = {Nagirnyi, V and Jönsson, Leif and Kirm, M and Kotlov, A and Lushchik, A and Martinson, Indrek and Watterich, A and Zadneprovski, BI},
  issn         = {1879-0925},
  keyword      = {triplet states,decay kinetics,ZnWO4,scintillators,self-trapped holes},
  language     = {eng},
  number       = {4-6},
  pages        = {519--522},
  publisher    = {Elsevier},
  series       = {Radiation Measurements},
  title        = {Luminescence study of pure and Fe- or Mo-doped ZnWO4 crystals},
  url          = {http://dx.doi.org/10.1016/j.radmeas.2004.01.024},
  volume       = {38},
  year         = {2004},
}