Thermostimulated luminescence properties of CaSO 4 :Dy and CaSO 4 :Tm phosphors annealed at high temperatures | Zendy

Lakshmanan A. R. | Zendy; Lapraz D. | Zendy; Prévost H. | Zendy; Benabdesselam M. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Thermostimulated luminescence properties of CaSO 4 :Dy and CaSO 4 :Tm phosphors annealed at high temperatures

Author(s) -

Lakshmanan A. R.,

Lapraz D.,

Prévost H.,

Benabdesselam M.

Publication year - 2005

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200406911

Subject(s) - phosphor , luminescence , annealing (glass) , analytical chemistry (journal) , irradiation , materials science , thermoluminescence , sintering , photostimulation , nuclear chemistry , radiochemistry , chemistry , mineralogy , optoelectronics , metallurgy , nuclear physics , physics , chromatography , biochemistry

Pre‐irradiation annealing at temperatures ≥800 °C in air drastically reduces the 230 °C dosimetric thermostimulated luminescence (TSL) peak in CaSO 4 :Dy/Tm and simultaneously the 60 °C and 120 °C peaks are strongly enhanced. In samples sintered at 1000 °C, the dosimetric peak vanished totally while the low temperature peaks exhibit a high TSL sensitivity. Moreover, the PL intensities decrease drastically on high temperature sintering; a reduction by as much as 75% is seen at 1000 °C. Photo‐transfer studies indicate that the 60 °C peak might originate from electron release while the 120 °C peak from hole release. These two low temperature TSL peaks could have potential applications for photostimulation. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research