The absorption spectra of ZSBMY measured before and after the irradiation in UV-Vis region (a) and infrared region (b).
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.
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.
The model of mechanism of ZSBM. The band gap of ZSBM is calculated from its UV absorption limit, which is published in Ref. 9.
(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.
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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