Influence of Annealing Process on the Photostimulated Luminescence Properties of CsBr:Eu~(2+)
Source abstract
Abstract
CsBr:Eu2+ powders were prepared by solid-state reaction.The photostimulated luminescence(PSL)spectra,the differential absorption spectra(DAS)and PSL lifetime spectra were systematically investigated.The results reveal the annealing process can increase the PSL intensity and decrease the PSL lifetime.The relationship between the annealing atmosphere and PSL properties were discussed in detail,and the results reveal that substitutional oxygen ions Os-(S:substitute,O-substitute for Br-)and interstitial hydrogen atoms H io are formed in the annealing process.All of Os-,H io and H o2i are electron trap centers,which are closely related to the formation of hole traps centers.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Radiation Detection and Scintillator Technologies · Gas Sensing Nanomaterials and Sensors
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