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http://hdl.handle.net/10773/5550
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Alves, E. | pt |
dc.contributor.author | Rita, E. | pt |
dc.contributor.author | Wahl, U. | pt |
dc.contributor.author | Correia, J.G. | pt |
dc.contributor.author | Monteiro, Teresa | pt |
dc.contributor.author | Soares, Manuel | pt |
dc.contributor.author | Boemare, Claude | pt |
dc.date.accessioned | 2012-01-27T15:49:12Z | - |
dc.date.issued | 2003 | - |
dc.identifier.issn | 0168-583X | pt |
dc.identifier.uri | http://hdl.handle.net/10773/5550 | - |
dc.description.abstract | ZnO (O face) single crystals were implanted with 150 keV Er+ ions to fluences of 5 × 1014 and 5 × 1015 Er+/cm2 at room temperature. For fluences of 5 × 1015 Er+/cm2 the implantation damage raises the minimum yield from 2% to 22%. Despite the large amount of damage a fraction of 90% of the implanted Er ions are incorporated in substitutional sites along the [0 0 0 1] axis. Photoluminescence (PL) studies reveal the presence of a weak emission near 1.54 μm at 77 K due to the 4I13/2→4I15/2 transition of the Er3+ ions. Annealing in oxidizing atmosphere at 800 °C leads to a reduction of the implantation damage, which is fully recovered after annealing at 1050 °C for 30 min. The annealing at 1050 °C leads to the outdiffusion of Er, with a 50% loss from the implanted region after the annealing. Only a fraction of 25% of the remaining Er is still in regular sites after the annealing and the Er3+ PL vanishes | pt |
dc.description.sponsorship | CERN/FIS/43725/2001 | pt |
dc.language.iso | eng | pt |
dc.publisher | Elsevier | pt |
dc.relation | dx.doi.org/10.1016/S0168-583X(03)00931-5 | pt |
dc.relation.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-0037566893&partnerID=40&md5=dd564be1bbf8876bcb2f409715e5082b | |
dc.rights | restrictedAccess | por |
dc.subject | Er doping | pt |
dc.subject | RBS/channeling | pt |
dc.subject | ZnO crystals | pt |
dc.title | Lattice site location and optical activity of Er implanted ZnO | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 1047 | pt |
degois.publication.lastPage | 1051 | pt |
degois.publication.title | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms | pt |
degois.publication.volume | 206 | pt |
dc.date.embargo | 10000-01-01 | - |
Appears in Collections: | DFis - Artigos |
Files in This Item:
File | Description | Size | Format | |
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NIMB.pdf | versão pdf do editor | 183.88 kB | Adobe PDF |
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