http://www.cnr.it/ontology/cnr/individuo/prodotto/ID207938
Eu3+ reduction and efficient light emission in Eu2O3 films deposited on Si substrates (Articolo in rivista)
- Type
- Label
- Eu3+ reduction and efficient light emission in Eu2O3 films deposited on Si substrates (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Alternative label
Bellocchi G, Franzo G, Iacona F, Boninelli S, Miritello M, Cesca T, Priolo F (2012)
Eu3+ reduction and efficient light emission in Eu2O3 films deposited on Si substrates
in Optics express
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Bellocchi G, Franzo G, Iacona F, Boninelli S, Miritello M, Cesca T, Priolo F (literal)
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- http://www.opticsinfobase.org/oe/abstract.cfm?URI=OPEX-20-5-5501 (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- [ 1 ] MATIS CNR IMM, I-95123 Catania, Italy
[ 2 ] Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy
[ 3 ] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy
[ 4 ] CNISM, I-35131 Padua, Italy (literal)
- Titolo
- Eu3+ reduction and efficient light emission in Eu2O3 films deposited on Si substrates (literal)
- Abstract
- A stable Eu3+-> Eu2+ reduction is accomplished by thermal annealing in N-2 ambient of EU2O3 films deposited by magnetron sputtering on Si substrates. Transmission electron microscopy and x-ray diffraction measurements demonstrate the occurrence of a complex reactivity at the Eu2O3/Si interface, leading to the formation of Eu2+ silicates, characterized by a very strong (the measured external quantum efficiency is about 10%) and broad room temperature photoluminescence (PL) peak centered at 590 nm. This signal is much more efficient than the Eu3+ emission, mainly consisting of a sharp PL peak at 622 nm, observed in O-2-annealed films, where the presence of a SiO2 layer at the Eu2O3/Si interface prevents Eu2+ formation. (literal)
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