Mostrar el registro sencillo del ítem
Effect of Pressure-Assisted Heat Treatment on Photoluminescence Emission of α-Bi2O3 Needles
dc.contributor.author | Schmidt, Samara | |
dc.contributor.author | Kubaski, Evaldo T. | |
dc.contributor.author | Volanti, Diogo P. | |
dc.contributor.author | Sequinel, Thiago | |
dc.contributor.author | Bezzon, Vinicius Danilo N. | |
dc.contributor.author | Beltran, Armando | |
dc.contributor.author | Tebcherani, Sergio M. | |
dc.contributor.author | Varela, José A. | |
dc.date.accessioned | 2016-05-31T16:30:37Z | |
dc.date.available | 2016-05-31T16:30:37Z | |
dc.date.issued | 2015-10 | |
dc.identifier.citation | SCHMIDT, Samara, et al. Effect of pressure-assisted heat treatment on photoluminescence emission of α-Bi2O3 needles. Inorganic chemistry, 2015, vol. 54, no 21, p. 10184-10191. | ca_CA |
dc.identifier.uri | http://hdl.handle.net/10234/160155 | |
dc.description.abstract | Materials with high photoluminescence (PL) intensity can potentially be used in optical and electronic devices. Although the PL properties of bismuth(III) oxide with a monoclinic crystal structure (α-Bi2O3) have been explored in the past few years, methods of increasing PL emission intensity and information relating PL emission to structural defects are scarce. This research evaluated the effect of a pressure-assisted heat treatment (PAHT) on the PL properties of α-Bi2O3 with a needlelike morphology, which was synthesized via a microwaveassisted hydrothermal (MAH) method. PAHT caused an angular increase between the [BiO6]−[BiO6] clusters of α- Bi2O3, resulting in a significant increase in the PL emission intensity. The Raman and XPS spectra also showed that the α- Bi2O3 PL emissions in the low-energy region (below ∼2.1 eV) are attributed to oxygen vacancies that form defect donor states. The experimental results are in good agreement with first-principles total-energy calculations that were carried out within periodic density functional theory (DFT). | ca_CA |
dc.description.sponsorShip | This research was funded by The State of Sao Paulo Research Foundation (FAPESP), Research Award No. CEPID 2013/07296-2. Author S. Schmidt is grateful to the Coordination for the Improvement of Higher Education Personnel (Capes) for her doctoral scholarship. This work was also supported by Spanish MALTA-Consolider Ingenio 2010 Program (Project CSD2007-00045). The authors are also grateful to Prof. Juan Andrés for his collaboration in the preparation of this article. | ca_CA |
dc.format.extent | 28 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Chemical Society | ca_CA |
dc.relation.isPartOf | Inorganic chemistry, 2015, vol. 54, no 21 | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/CNE/1.0/ | * |
dc.subject | Bismuth(III) oxide | ca_CA |
dc.subject | photoluminescent properties | ca_CA |
dc.subject | [BiO6]-[BiO6] clusters | ca_CA |
dc.title | Effect of Pressure-Assisted Heat Treatment on Photoluminescence Emission of α-Bi2O3 Needles | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http:\\dx.doi.org/10.1021/acs.inorgchem.5b01237 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | http://pubs.acs.org/doi/10.1021/acs.inorgchem.5b01237 | ca_CA |
dc.edition | Postprint | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
Ficheros en el ítem
Este ítem aparece en la(s) siguiente(s) colección(ones)
-
QFA_Articles [830]
Articles de publicacions periòdiques