http://www.cnr.it/ontology/cnr/individuo/prodotto/ID24848
Photoluminescence spectroscopy of Er3+/Yb3+ co-activated silica-alumina monolithic xerogels (Articolo in rivista)
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- Label
- Photoluminescence spectroscopy of Er3+/Yb3+ co-activated silica-alumina monolithic xerogels (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s10971-004-5800-x (literal)
- Alternative label
C.Armellini, A. Chiasera, S. Dirè, M. Ferrari, A. Martucci, M. Mattarelli, M. Montagna, E. Moser, S. Pelli, G.C. Righini, G.D. Soraru, L. Zampedri (2004)
Photoluminescence spectroscopy of Er3+/Yb3+ co-activated silica-alumina monolithic xerogels
in Journal of sol-gel science and technology
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- C.Armellini, A. Chiasera, S. Dirè, M. Ferrari, A. Martucci, M. Mattarelli, M. Montagna, E. Moser, S. Pelli, G.C. Righini, G.D. Soraru, L. Zampedri (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- C. ARMELLINI AND A. CHIASERA*
CNR-IFN, Institute of Photonics and Nanotechnologies, CSMFO Group, via Sommarive 14,
38050 Povo-Trento, Italy
achiaser@science.unitn.it
S. DIRE`
Dipartimento di Ingegneria dei Materiali, Universita d` i Trento, via Mesiano 44, 38050 Povo-Trento, Italy
M. FERRARI
CNR-IFN, Institute of Photonics and Nanotechnologies, CSMFO Group, via Sommarive 14,
38050 Povo-Trento, Italy
A. MARTUCCI
Universita d` i Padova, Dipartimento di Ingegneria Meccanica Sez. Materiali, Via Marzolo 9, 35131 Padova, Italy
M. MATTARELLI, M. MONTAGNA AND E. MOSER
Dipartimento di Fisica and INFM, Universita d` i Trento, via Sommarive 14, I-38050 Povo-Trento, Italy
S. PELLI AND G.C. RIGHINI
CNR-IFAC, Institute of Applied Physics \"Nello Carrara,\" Via Panciatichi 64, 5 0127 Firenze, Italy
G.D. SORARU
Dipartimento di Ingegneria dei Materiali, Universita d` i Trento, via Mesiano 44, 38050 Povo-Trento, Italy
L. ZAMPEDRI
CNR-IFN, Institute of Photonics and Nanotechnologies, CSMFO group, via Sommarive 14,
38050 Povo-Trento, Italy; Dipartimento di Ingegneria dei Materiali, Universita d` i Trento,
via Mesiano 44, 38050 Povo-Trento, Italy (literal)
- Titolo
- Photoluminescence spectroscopy of Er3+/Yb3+ co-activated silica-alumina monolithic xerogels (literal)
- Abstract
- Two Er3+/Yb3+ monolithic silica-alumina xerogels doped with different Yb3+ concentrations were prepared by sol-gel route. The samples were thermally treated in air at 950 degrees C for 120 h. and Raman and UV-visible-NIR spectroscopy were used to monitor the degree of densification of the glasses and the residual OH content. Back energy transfer from Er3+ to Yb3+ was demonstrated by measurement of Yb3+ emission upon Er3+ excitation at 514.5 nm. Photoluminescence excitation spectroscopy over the 880-1010 nm wavelength range, spanning the energy range of the Yb3+-F-2(5/2) and Er3+-I-4(11/2) excited states, was used to obtain information about the effective excitation efficiency of Er3+ ions by co-doping with Yb ions. The emission of I-4(13/2) --> I-4(15/2) of Er3+ ion transition with a 47 nm bandwidth was observed upon excitation at 514.5 nm and a lifetime of the I-4(13/2) metastable state of 8.7 ms was measured. (literal)
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