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Excited state luminescence signals from a random distribution of defects : A new Monte Carlo simulation approach for feldspar

Title data

Pagonis, Vasilis ; Friedrich, Johannes ; Discher, Michael ; Müller-Kirschbaum, Anna ; Schlosser, Veronika ; Kreutzer, Sebastian ; Chen, Reuven ; Schmidt, Christoph:
Excited state luminescence signals from a random distribution of defects : A new Monte Carlo simulation approach for feldspar.
In: Journal of Luminescence. Vol. 207 (March 2019) . - pp. 266-272.
ISSN 0022-2313
DOI: https://doi.org/10.1016/j.jlumin.2018.11.024

Project information

Project title:
Project's official titleProject's id
ULTIMO: Unifying LumInescence Models of quartz and feldspar – towards a comprehensive and reproducible modelling platform57387041

Abstract in another language

This paper presents Monte Carlo simulations of tunneling recombination in random distributions of defects. Simulations are carried out for four common luminescence phenomena in solids exhibiting tunneling recombination, namely continuous wave infrared stimulated luminescence (CW-IRSL), thermoluminescence (TL), isothermal thermoluminescence (iso-TL) and linearly modulated infrared stimulated luminescence (LM-IRSL). Previous modeling work has shown that these phenomena can be described by the same partial differential equation, which must be integrated numerically over two variables, the elapsed time and the donor-acceptor distance. We here present a simple and fast Monte Carlo approach which can be applied to these four phenomena, and which reproduces the solution of the partial differential equation, without the need for numerical integrations. We show that the method is also applicable to cases of truncated distributions of nearest neighbor distances, which characterize samples that underwent multiple optical or thermal pretreatments. The accuracy and precision of the Monte Carlo method are tested by comparing with experimental data from several feldspar samples.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Monte Carlo model; Feldspar model; Excited state luminescence in feldspars
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Geomorphology
Profile Fields > Advanced Fields > Ecology and the Environmental Sciences
Profile Fields > Advanced Fields > Nonlinear Dynamics
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 550 Earth sciences, geology
Date Deposited: 28 Nov 2018 07:39
Last Modified: 28 Nov 2018 07:40
URI: https://eref.uni-bayreuth.de/id/eprint/46484