Study of charge carrier trapping by EPR and TSL methods in ZnxMg1-xWO4 single crystals

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00517932" target="_blank" >RIV/68378271:_____/19:00517932 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.optmat.2019.109362" target="_blank" >https://doi.org/10.1016/j.optmat.2019.109362</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.optmat.2019.109362" target="_blank" >10.1016/j.optmat.2019.109362</a>

Result language
angličtina
Original language name
Study of charge carrier trapping by EPR and TSL methods in ZnxMg1-xWO4 single crystals
Original language description
Charge carrier trapping was studied using EPR and TSL methods in ZnWO4, MgWO4 and mixed ZnxMg1-xWO4 crystals. An electron trapped at a perturbed W site was detected in MgWO4. It was also shown that holes are trapped at oxygen ions thus forming O− centers. Two different O- centers, one perturbed by a cation vacancy, another by Al impurity, were found in MgWO4, while a single hole center perturbed by Cd impurity and hydroxyl group nearby was detected in ZnWO4. The number of non-equivalent hole centers increases up to five for the mixed crystals due to the perturbations induced by statistically distributed substitutional cations. It is shown that the thermal release of holes is accompanied by thermostimulated luminescence (TSL). The broadening of the TSL peaks typically observed in mixed crystals is connected with the increase of the number of non-equivalent trapping centers of the same type.n
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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