LaF3 doped with Ce/Gd/Eu: energy transfer and excitation dependence of photoluminescence rise-and-decay kinetics
In this paper, we analyze time-domain luminescence measurements using multiexponential rise-and-decay functions. The relationships between these functions and the physics behind the analyzed photoemission kinetics are shown using several basic arbitrary photoluminescence systems. The advantages and...
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Frontiers Media S.A.
2025-04-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2025.1501039/full |
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| author | Andrii Shyichuk Daria Szeremeta Marcin Runowski Eugeniusz Zych Eugeniusz Zych Stefan Lis |
| author_facet | Andrii Shyichuk Daria Szeremeta Marcin Runowski Eugeniusz Zych Eugeniusz Zych Stefan Lis |
| author_sort | Andrii Shyichuk |
| collection | DOAJ |
| description | In this paper, we analyze time-domain luminescence measurements using multiexponential rise-and-decay functions. The relationships between these functions and the physics behind the analyzed photoemission kinetics are shown using several basic arbitrary photoluminescence systems. The advantages and disadvantages of the different types of functions mentioned are discussed. The paper is focused on peculiarities of the fitting process, such as the role of initial guess, under- and overfitting problems, and estimating fit quality (using patterns in the fit residual). Systems of differential equations are used to analyze selected cases by adjusting certain parameters. Hydrothermally treated LaF3:Ln3+ nanoparticles (where Ln3+ = Gd3+; Gd3+,Ce3+; Eu3+; Ce3+,Eu3+; Gd3+,Eu3+; or Ce3+,Gd3+,Eu3+) were used as a test case in which the role of interionic charge transfer was investigated by direct experimental measurements only, without the underlying theory. The methodological tips contained in this paper, although applied to the lanthanide (III) luminescence, should be interesting and useful for a much broader audience, for everyone working with smooth rise-and-decay curves. |
| format | Article |
| id | doaj-art-a207d85031914c219dc5a1761230822e |
| institution | OA Journals |
| issn | 2296-2646 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj-art-a207d85031914c219dc5a1761230822e2025-08-20T02:18:39ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462025-04-011310.3389/fchem.2025.15010391501039LaF3 doped with Ce/Gd/Eu: energy transfer and excitation dependence of photoluminescence rise-and-decay kineticsAndrii Shyichuk0Daria Szeremeta1Marcin Runowski2Eugeniusz Zych3Eugeniusz Zych4Stefan Lis5Faculty of Chemistry, University of Wroclaw, Wrocław, PolandFaculty of Chemistry, Adam Mickiewicz University in Poznań, Poznań, PolandFaculty of Chemistry, Adam Mickiewicz University in Poznań, Poznań, PolandFaculty of Chemistry, University of Wroclaw, Wrocław, PolandBiophysics Department, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße Dresden, GermanyFaculty of Chemistry, Adam Mickiewicz University in Poznań, Poznań, PolandIn this paper, we analyze time-domain luminescence measurements using multiexponential rise-and-decay functions. The relationships between these functions and the physics behind the analyzed photoemission kinetics are shown using several basic arbitrary photoluminescence systems. The advantages and disadvantages of the different types of functions mentioned are discussed. The paper is focused on peculiarities of the fitting process, such as the role of initial guess, under- and overfitting problems, and estimating fit quality (using patterns in the fit residual). Systems of differential equations are used to analyze selected cases by adjusting certain parameters. Hydrothermally treated LaF3:Ln3+ nanoparticles (where Ln3+ = Gd3+; Gd3+,Ce3+; Eu3+; Ce3+,Eu3+; Gd3+,Eu3+; or Ce3+,Gd3+,Eu3+) were used as a test case in which the role of interionic charge transfer was investigated by direct experimental measurements only, without the underlying theory. The methodological tips contained in this paper, although applied to the lanthanide (III) luminescence, should be interesting and useful for a much broader audience, for everyone working with smooth rise-and-decay curves.https://www.frontiersin.org/articles/10.3389/fchem.2025.1501039/fullmultiexponential decayenergy transferphotoluminescence riserise-and-decay kineticsdecay fitting lanthanidesluminescence |
| spellingShingle | Andrii Shyichuk Daria Szeremeta Marcin Runowski Eugeniusz Zych Eugeniusz Zych Stefan Lis LaF3 doped with Ce/Gd/Eu: energy transfer and excitation dependence of photoluminescence rise-and-decay kinetics Frontiers in Chemistry multiexponential decay energy transfer photoluminescence rise rise-and-decay kinetics decay fitting lanthanides luminescence |
| title | LaF3 doped with Ce/Gd/Eu: energy transfer and excitation dependence of photoluminescence rise-and-decay kinetics |
| title_full | LaF3 doped with Ce/Gd/Eu: energy transfer and excitation dependence of photoluminescence rise-and-decay kinetics |
| title_fullStr | LaF3 doped with Ce/Gd/Eu: energy transfer and excitation dependence of photoluminescence rise-and-decay kinetics |
| title_full_unstemmed | LaF3 doped with Ce/Gd/Eu: energy transfer and excitation dependence of photoluminescence rise-and-decay kinetics |
| title_short | LaF3 doped with Ce/Gd/Eu: energy transfer and excitation dependence of photoluminescence rise-and-decay kinetics |
| title_sort | laf3 doped with ce gd eu energy transfer and excitation dependence of photoluminescence rise and decay kinetics |
| topic | multiexponential decay energy transfer photoluminescence rise rise-and-decay kinetics decay fitting lanthanides luminescence |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2025.1501039/full |
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