Thermoluminescence and thermally stimulated conductivity of heavily coloured NaF and NaF:Mg<sup>2+</sup>crystals

Jianai, Zhao; Liangfeng, Wan; Shaozhang, Guo

doi:10.1088/0022-3719/19/23/020

Cited by 3 publications

(1 citation statement)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general alkali fluorides form good phosphors. When M n + + ions are added to a fluoride lattice the process gets activated [3, 41. Though extensive studies have been made on the thermoluminesence in NaF [5], work on NaF : Mn+ + is sparse. Moreover formation of colloidal centers in these crystals has not been reported even though they have the advantage of optical stability for information storage applications.…”

Section: Introductionmentioning

confidence: 99%

Color Centers in Irradiated NaF: Mn++ Crystals

Murali

Murti

1990

phys. stat. sol. (a)

View full text Add to dashboard Cite

The effects of thermal and optical bleaching of color centers in NaF: Mn++ crystals are studied. Thermal treatment of γ‐colored crystals produces a new optical absorption band at 630 nm, accompained by an emission at 580 nm. Undoped crystals irradiated to the same dosage give emission bands at 410 and 620 nm under he same thermal treatment. The 580 nm emission in the doped system is characteristic of the dopant ion and corresponds to four excitation bands at 310, 385, 465, and 535 nm. Four glow peaks are observed at 156, 225, 302, and 360°C at a heating rate of 110°C per min. Partial thermal cleaning followed by photostimulation of F centers generates a new glow peak at 135°C and a new band having an absorption peak at 310 nm.

show abstract

Section: Introductionmentioning

confidence: 99%