dc.contributor |
Háskóli Íslands |
dc.contributor |
University of Iceland |
dc.contributor.author |
Khanin, Vasilii M. |
dc.contributor.author |
Vrubel, Ivan I. |
dc.contributor.author |
Polozkov, Roman G. |
dc.contributor.author |
Shelykh, Ivan |
dc.contributor.author |
Venevtsev, Ivan D. |
dc.contributor.author |
Meijerink, Andries |
dc.contributor.author |
Wieczorek, Herfried |
dc.contributor.author |
Boerekamp, Jack |
dc.contributor.author |
Spoor, Sandra |
dc.contributor.author |
Rodnyi, Piotr A. |
dc.contributor.author |
Ronda, Cees |
dc.date.accessioned |
2019-11-25T13:27:52Z |
dc.date.available |
2019-11-25T13:27:52Z |
dc.date.issued |
2019-02-18 |
dc.identifier.citation |
Khanin, V. M., Vrubel, I. I., Polozkov, R. G., Shelykh, I. A., Venevtsev, I. D., Meijerink, A., . . . Ronda, C. (2019). Modeling and Assessment of Afterglow Decay Curves from Thermally Stimulated Luminescence of Complex Garnets. The Journal of Physical Chemistry A, 123(9), 1894-1903. doi:10.1021/acs.jpca.8b11778 |
dc.identifier.issn |
1089-5639 |
dc.identifier.issn |
1520-5215 (eISSN) |
dc.identifier.uri |
https://hdl.handle.net/20.500.11815/1357 |
dc.description |
Post-print (lokagerð höfundar) |
dc.description.abstract |
Afterglow is an important phenomenon in luminescent materials and can be desired (e.g., persistent phosphors) or undesired (e.g., scintillators). Understanding and predicting afterglow is often based on analysis of thermally stimulated luminescence (TSL) glow curves, assuming the presence of one or more discrete trap states. Here we present a new approach for the description of the time-dependent afterglow from TSL glow curves using a model with a distribution of trap depths. The method is based on the deconvolution of the energy dependent density of occupied traps derived from TSL glow curves using Tikhonov regularization. To test the validity of this new approach, the procedure is applied to experimental TSL and afterglow data for Lu1Gd2Ga3Al2O12:Ce ceramics codoped with 40 ppm of Yb3+ or Eu3+ traps. The experimentally measured afterglow curves are compared with simulations based on models with and without the continuous trap depth distribution. The analysis clearly demonstrates the presence of a distribution of trap depths and shows that the new approach gives a more accurate description of the experimentally observed afterglow. The new method will be especially useful in understanding and reducing undesired afterglow in scintillators. |
dc.description.sponsorship |
I.I.V, R.G.P and I.A.S. acknowledge support support from the Projects 14.Y26.31.0015 and
3.8884.2017/8.9 of the Ministry of Education and Science of the Russian Federation and
Horizon2020 RISE project CoExAN. |
dc.format.extent |
1894-1903 |
dc.language.iso |
en |
dc.publisher |
American Chemical Society (ACS) |
dc.relation |
info:eu-repo/grantAgreement/EC/H2020/CoExAN |
dc.relation.ispartofseries |
The Journal of Physical Chemistry A;123(9) |
dc.rights |
info:eu-repo/semantics/openAccess |
dc.subject |
Eðlisfræði |
dc.subject |
Líkön |
dc.title |
Modeling and Assessment of Afterglow Decay Curves from Thermally Stimulated Luminescence of Complex Garnets |
dc.type |
info:eu-repo/semantics/article |
dcterms.license |
Open Access CC BY-NC-SA 4.0 https://creativecommons.org/licenses/by-nc-sa/4.0/ as mandated by H2020 Programme (https://ec.europa.eu/research/participants/data/ref/h2020/grants_manual/amga/h2020-amga_en.pdf#page=245) |
dc.description.version |
Peer Reviewed |
dc.identifier.journal |
Journal of Physical Chemistry A |
dc.identifier.doi |
10.1021/acs.jpca.8b11778 |
dc.relation.url |
https://pubs.acs.org/doi/pdf/10.1021/acs.jpca.8b11778 |
dc.contributor.department |
Raunvísindastofnun (HÍ) |
dc.contributor.department |
Science Institute (UI) |
dc.contributor.school |
Verkfræði- og náttúruvísindasvið (HÍ) |
dc.contributor.school |
School of Engineering and Natural Sciences (UI) |