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Near infrared long lasting emission of and its influence on the optical storage ability of -activated zinc borosilicate glasses
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View: Figures


Image of FIG. 1.
FIG. 1.

The absorption spectra of ZSBMY measured before and after the irradiation in UV-Vis region (a) and infrared region (b).

Image of FIG. 2.
FIG. 2.

The phosphorescence spectra of ZSBMY. In both figures, spectra and are measured immediately and 3 min after the UV irradiation. The inset of (a) is the photoluminescence spectrum of ZSBMY with an excitation wavelength of 254 nm.

Image of FIG. 3.
FIG. 3.

The decay curve of ZSBM (solid line) and ZSBMY (dot line) measured immediately after the UV irradiation. The monitored wavelength for both curves is 605 nm.

Image of FIG. 4.
FIG. 4.

The model of mechanism of ZSBM. The band gap of ZSBM is calculated from its UV absorption limit, which is published in Ref. 9.

Image of FIG. 5.
FIG. 5.

(a) is the thermoluminescence curve of ZSBM. (b) is the thermoluminescence cure of ZSBMY. All the curves were measured after the UV irradiation for 1 min. The heating rate is 2 K/s.

Image of FIG. 6.
FIG. 6.

Mechanism of ZSBMY. and are the characteristic transition of and , respectively. Traps and trap are electron and hole traps of host glass. and represent the special state of both ions after the UV irradiation.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Near infrared long lasting emission of Yb3+ and its influence on the optical storage ability of Mn2+-activated zinc borosilicate glasses