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http://hdl.handle.net/10773/5631
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DC Field | Value | Language |
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dc.contributor.author | Peres, Marco | pt |
dc.contributor.author | Cruz, A. | pt |
dc.contributor.author | Soares, Manuel | pt |
dc.contributor.author | Neves, Armando | pt |
dc.contributor.author | Monteiro, Teresa | pt |
dc.contributor.author | Lorenz, K. | pt |
dc.contributor.author | Alves, E. | pt |
dc.date.accessioned | 2012-01-31T11:27:53Z | - |
dc.date.issued | 2006-12 | - |
dc.identifier.issn | 0749-6036 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/5631 | - |
dc.description.abstract | Eu ions were incorporated into AlN thin films using ion implantation, and the influence of the post-implant annealing ambient on structural and optical properties was investigated. Eu is incorporated into lattice sites which are slightly displaced from the substitutional Al sites. When compared with the as-implanted sample the near-substitutional ion fraction is reduced due to the thermal annealing in different atmospheres. The AlN crystal quality does not change with different annealing conditions, but sensitive defect-related emission bands are developed under different annealing temperatures. Eu3+ optical activation is detected for all the annealed samples. No spectral changes are observed for the shape of the intra- transition, suggesting that a similar site symmetry is preserved even when a slight displacement from the substitutitional site of the Eu3+ ions occurs. The role of the annealing conditions on the spectral position and thermal quenching of the transition is discussed. | pt |
dc.description.sponsorship | FCT-POCI/FIS/57550/2004 | pt |
dc.language.iso | eng | pt |
dc.publisher | Elsevier | pt |
dc.relation.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-33845195888&partnerID=40&md5=c8a75575d70b022b290adafafa2e5758 | |
dc.rights | restrictedAccess | por |
dc.subject | AlN | pt |
dc.subject | RE’s | pt |
dc.subject | Ion implantation | pt |
dc.subject | RBS/C | pt |
dc.subject | PL | pt |
dc.title | Optical and structural studies in Eu-implanted AlN films | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 537 | pt |
degois.publication.issue | 4-6 | pt |
degois.publication.issue | 4-6 SPEC. ISS. | |
degois.publication.lastPage | 544 | pt |
degois.publication.title | Superlattices and Microstructures | pt |
degois.publication.volume | 40 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.identifier.doi | 10.1016/j.spmi.2006.07.031 | * |
Appears in Collections: | DFis - Artigos |
Files in This Item:
File | Description | Size | Format | |
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SM.pdf | versão pdf do editor | 910.95 kB | Adobe PDF |
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