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Iribarren, A. and Fernández Sánchez, Paloma and Piqueras de Noriega, Javier (2008) Cathodoluminescence characterization of ZnO : Te microstructures obtained with ZnTe and TeO_2 doping precursors. Superlattices and Microstructures, 43 (5-jun). pp. 600-604. ISSN 0749-6036
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Official URL: http://dx.doi.org/10.1016/j.spmi.2007.06.009
Abstract
ZnTe- and TeO_2-doped ZnO nanostructures and microstructures were obtained by a vapour-solid process by sintering compacted ZnO powder mixed with each precursor. Cathodoluminescence (CL) measurements show that if TeO_2 is used, then the defect band, due mainly to O vacancies (V-O), tends to reduce and even disapear, which indicates that Te reacts with ZnO and passivates the O vacancies better than if ZnTe is used as a precursor. With both precursors, a CL peak at about 3.08-3.17 eV, which overlaps with that of ZnO at about 3.26 eV, indicates that ZnTe_xO_(1-x) forms.
Item Type: | Article |
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Additional Information: | © 2007 Elsevier Ltd. All rights reserved. |
Uncontrolled Keywords: | Luminescence Properties, Photoluminescence, Growth |
Subjects: | Sciences > Physics > Materials |
ID Code: | 25819 |
Deposited On: | 16 Jun 2014 16:06 |
Last Modified: | 08 Jun 2016 18:40 |
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