AI Article Synopsis
- - The study explored how different heat treatments affected the thermoluminescence (TL) and structure of zinc sulfide (ZnS) samples, revealing that annealing increased the proportion of the hexagonal wurtzite phase.
- - The best thermoluminescence intensity was found in a sample with 8.2% wurtzite and 91.8% cubic zinc sulfide, with the analysis showing well-formed, aggregated ZnS nanoparticles.
- - The researchers used advanced techniques to analyze TL glow curves, identifying multiple trapping energy peaks and determining activation energies related to electron traps in the samples.
Article Abstract
In the current study, the effects of heat treatment on the thermoluminescence (TL) and structural properties of zinc blend samples were studied. The samples were annealed after being heated for different time periods from 2 up to 10 h. The wurtzite hexagonal phase was observed upon heat treatment. It was observed that the presence of hexagonal phase with small percentage enhanced the thermoluminescence effect where the highest intensity was found to be for the sample with 8.2% wurtzite and 91.8% cubic zinc sulphide. The morphology of ZnS particles was studied by the HR-TEM analysis and it displayed an aggregated ZnS nanoparticles with almost uniform shape and size. The TL-glow curves for each sample were analysed using the Computerized Glow Curve Deconvolution (CGCD) and initial rise (IR) methods. Six trapping peaks exist between 0.98 and 1.45 eV through the deconvolution process. The number of peaks increased to 8 peaks for the fourth treatment, located between 0.95 and 1.56 eV. The activation energies and the frequency factors for getting traps were evaluated too.
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| http://dx.doi.org/10.1007/s10895-024-04050-8 | DOI Listing |
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