Ivetić Tamara and Petrović Jelena and Klisurić Olivera and Lukić-Petrović Svetlana: Optical energy bandgap tuning of spinel zinc stannate by erbium/ytterbium doping.
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Abstract
This work shows the results of an optical energy bandgap (Eg) investigation supported by scanning electron microscopy (SEM) of spinel-type zinc stannate (Zn2SnO4) upon doping with rear earth (RE3+) ions (Er3+, Yb3+). The powder samples are synthesized by a mechanochemical solid-state method with the final annealing step at 1200 C. The reference Zn2SnO4 powder sample bandgap (3.87 eV) turning lower upon doping, precisely to 3.5 eV, and 3.37 eV bandgap values found for Er-doped Zn2SnO4 and Er,Yb-codoped Zn2SnO4 powder samples, respectively is a confirmation of the successful incorporation of the RE3+ ions into the Zn2SnO4 host structure. Morphology of the obtained powders shows, in general, the non-uniformly shaped agglomerates, while their particle sizes follow up the bandgap decreasing trend with doping.
| Item Type: | Conference or Workshop Item |
|---|---|
| Journal or Publication Title: | Proceedings of the International Symposium on Analytical and Environmental Problems |
| Date: | 2020 |
| Volume: | 26 |
| ISBN: | 978-963-306-771-0 |
| Page Range: | pp. 169-172 |
| Language: | English |
| Event Title: | International Symposium on Analytical and Environmental Problems (26.) (2020) (Szeged) |
| Related URLs: | http://acta.bibl.u-szeged.hu/73792/ |
| Uncontrolled Keywords: | Kémia |
| Additional Information: | Bibliogr.: 172. p. ; ill. ; összefoglalás angol nyelven |
| Subjects: | 01. Natural sciences 01. Natural sciences > 01.04. Chemical sciences |
| Date Deposited: | 2021. Nov. 17. 11:53 |
| Last Modified: | 2022. Aug. 08. 15:39 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/73987 |
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