Synthesis optimization and charge carrier transfer mechanism in LiLuSiO&lt;sub&gt;4&lt;/sub&gt;:Ce, Tm storage phosphor

Dobrowolska, Anna; bos, A.J.J.; Dorenbos, P.

doi:10.1016/j.radmeas.2019.106147

Synthesis optimization and charge carrier transfer mechanism in LiLuSiO₄:Ce, Tm storage phosphor

Title

Synthesis optimization and charge carrier transfer mechanism in LiLuSiO₄:Ce, Tm storage phosphor

Author

Dobrowolska, Anna (External organisation)
bos, A.J.J. (TU Delft RST/Fundamental Aspects of Materials and Energy; TU Delft RST/Luminescence Materials)
Dorenbos, P. (TU Delft RST/Luminescence Materials)

Date

2019

Abstract

LiLuSiO₄:Ce and LiLuSiO₄:Ce, Tm show very efficient charge carrier storage properties upon beta irradiation after samples have received treatment in vacuum. They outperform the commercial storage phosphor BaFBr(I):Eu²⁺ in many aspects. The influence of the synthesis conditions, Ce and Tm concentration, nonstoichiometry and codoping with Ca, Hf, Al and Ge are reported. Based on the results of the synthesis optimization, thermoluminescence (TL) emission and TL excitation spectra a mechanism of charge carrier transfer, storage, and recombination during irradiation and thermal or optical readout is proposed.

Subject

Cerium
Charge transfer
Storage phosphors
Thermoluminescence
Thulium

To reference this document use:

http://resolver.tudelft.nl/uuid:9f54a11d-fa39-469d-b9eb-b1e3c7f0c061

DOI

https://doi.org/10.1016/j.radmeas.2019.106147

Embargo date

2021-08-02

ISSN

1350-4487

Source

Radiation Measurements, 127