α-Bi_2O_3 microcrystals and microrods: thermal synthesis, structural and luminescence properties
| dc.contributor.author | Piqueras De Noriega, Francisco Javier | |
| dc.contributor.author | Díaz-Guerra Viejo, Carlos | |
| dc.contributor.author | Vila Santos, María | |
| dc.date.accessioned | 2023-06-19T13:22:21Z | |
| dc.date.available | 2023-06-19T13:22:21Z | |
| dc.date.issued | 2013-01-25 | |
| dc.description | © 2012 Elsevier B.V. This work has been supported by MICINN through projects MAT2009-07882 and CSD2009-0013. The authors are grateful to E. Magnano, S. Nappini and M. Yablonskikh at the Sincrotron Trieste for useful advices on XPS measurements. | |
| dc.description.abstract | α-Bi_2O-3 microcrystals and microrods with pyramidal tips have been grown by a vapour–solid method using pure Bi as starting material. The morphology of the obtained microstructures depends on the annealing temperature and time. At 650 °C and for short annealing times, microcrystals with well defined facets and sizes of tens of microns, as well as clusters of microcrystals, are formed. Microrods were grown at 800 °C, mainly from nucleation sites in the clusters of microcrystals, and reach lengths of hundreds of microns. Micro-Raman spectroscopy measurements reveal the homogeneity of the obtained microstructures regarding the crystalline α-phase. The luminescence properties of the microrods have been investigated by cathodoluminescence in the scanning electron microscope and by photoluminescence in a confocal microscope. The obtained results were correlated with X-ray photoelectron spectroscopy measurements. | |
| dc.description.department | Depto. de Física de Materiales | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | MICINN (Ministerio de Ciencia e Innovación, España) | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/23623 | |
| dc.identifier.doi | 10.1016/j.jallcom.2012.08.133 | |
| dc.identifier.issn | 0925-8388 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1016/j.jallcom.2012.08.133 | |
| dc.identifier.relatedurl | http://www.sciencedirect.com/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/33387 | |
| dc.journal.title | Journal of Alloys and Compounds | |
| dc.language.iso | eng | |
| dc.page.final | 193 | |
| dc.page.initial | 188 | |
| dc.publisher | Elsevier Science | |
| dc.relation.projectID | MAT2009-07882 | |
| dc.relation.projectID | CSD2009-0013 | |
| dc.rights.accessRights | restricted access | |
| dc.subject.cdu | 538.9 | |
| dc.subject.keyword | Bismuth Oxide | |
| dc.subject.keyword | Optical-Properties | |
| dc.subject.keyword | Thin-Films | |
| dc.subject.keyword | Bi_2O_3 | |
| dc.subject.keyword | Spectra | |
| dc.subject.keyword | Surface | |
| dc.subject.keyword | Bismuthsesquioxide | |
| dc.subject.keyword | Evaporation | |
| dc.subject.keyword | Nanowires | |
| dc.subject.keyword | Ceramics | |
| dc.subject.ucm | Física de materiales | |
| dc.title | α-Bi_2O_3 microcrystals and microrods: thermal synthesis, structural and luminescence properties | |
| dc.type | journal article | |
| dc.volume.number | 548 | |
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