Synthesis and photoluminescent properties of the Dy3+ doped YSO as a high-temperature thermographic phosphor

Journal article
(Original article)


Publication Details

Author(s): Chepyga L, Hertle EE, Ali A, Zigan L, Osvet A, Brabec C, Batentschuk M
Journal: Journal of Luminescence
Publisher: Elsevier B.V.
Publication year: 2018
Volume: 197
Pages range: 23-30
ISSN: 0022-2313
Language: English


Abstract


Dy3+-doped yttrium orthosilicate (Y2SiO5, abbreviated YSO) phosphors were synthesized: (1) by conventional high temperature solid-state method using two types of fluxes: lithium fluoride (LiF) and boron oxide (B2O3); (2) by metal alkoxide sol-gel method using isopropoxide assisted co-precipitation with subsequent annealing to explore its possible application in high-temperature thermometry. It was experimentally observed that the use of LiF flux affects the luminescent properties due to improvement of the crystal quality of crystallites and co-doping Li+ and F- ions. Herein, a strategy involving the use of different fluxes and concentration of Dy3+ ions has been developed to achieve high photoluminescence (PL) intensity and high intensity ratio of different PL peaks. The case of incorporated LiF in the host crystal lattices revealed strong enhancement of luminescence intensity of YSO:Dy (more than three times higher at 293 K) compared to the luminescence intensity of the phosphors synthesized with B2O3. Based on the results of high temperature measurements, it can be stated that YSO:Dy is a favorable phosphor for high temperature measurement, with a temperature sensitivity range comparable to YAG:Dy but with a lower PL decay time which is reduced by about 60%. For temperatures up to 1250 K the intensity ratio approach offers better measurement capabilities while the temperature sensitivity above 1250 K is superior for the decay time approach.



FAU Authors / FAU Editors

Ali, Amjad
Institute Materials for Electronics and Energy Technology (i-MEET)
Batentschuk, Miroslaw PD Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Chepyga, Liudmyla
Institute Materials for Electronics and Energy Technology (i-MEET)
Hertle, Ellen Elisabeth
Lehrstuhl für Technische Thermodynamik
Osvet, Andres Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Zigan, Lars PD Dr. habil.
Lehrstuhl für Technische Thermodynamik


Additional Organisation
Erlangen Graduate School in Advanced Optical Technologies


Research Fields

Neue Materialien und Prozesse
Research focus area of a faculty: Technische Fakultät


How to cite

APA:
Chepyga, L., Hertle, E.E., Ali, A., Zigan, L., Osvet, A., Brabec, C., & Batentschuk, M. (2018). Synthesis and photoluminescent properties of the Dy3+ doped YSO as a high-temperature thermographic phosphor. Journal of Luminescence, 197, 23-30. https://dx.doi.org/10.1016/j.jlumin.2017.12.072

MLA:
Chepyga, Liudmyla, et al. "Synthesis and photoluminescent properties of the Dy3+ doped YSO as a high-temperature thermographic phosphor." Journal of Luminescence 197 (2018): 23-30.

BibTeX: 

Last updated on 2018-29-10 at 13:50