Thermoluminescence in gallium sulfide crystals: an unusual heating rate dependence
作者： S. Delice , E. Bulur , N.M. Gasanly
DOI: 10.1080/14786435.2015.1014444
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摘要: Trap centres in gallium sulfide single crystals have been investigated by thermoluminescence measurements the temperature range of 10–230 K. A curve-fitting method was utilized to evaluate activation energies (52, 200 and 304 meV) revealed three trap centres. The heating rate dependence distribution peaks studied using experimental techniques based on various rates illumination temperatures, respectively. An anomalous high-temperature peak found carrying out TL with between 0.2 1.0 K/s. This behaviour explained basis a semi-localized transition model. Whereas normal established for low-temperature peak, that is, intensity glow curve decreases maximum shifts higher values increasing rate. Moreover, quasi-continuous increase energi...
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