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Ag nanoaggregates as efficient broadband sensitizers for Tb3+ ions in silica-zirconia ion-exchanged sol-gel glasses and glass-ceramics
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- Enrichi, Francesco (author)
- Luleå tekniska universitet,Materialvetenskap,Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Roma,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU),Universita Ca' Foscari Venezia
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- Belmokhtar, Saloua (author)
- Laboratoire des Technologies Innovantes, LTI, Université Abdelmalek Essâadi, Tanger,Université Abdelmalek Essaâdi
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- Benedetti, Alvise (author)
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Mestre, Venezia,Universita Ca' Foscari Venezia
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- Bouajaj, Adel (author)
- Laboratoire des Technologies Innovantes, LTI, Université Abdelmalek Essâadi, Tanger,Université Abdelmalek Essaâdi
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- Cattaruzza, E. (author)
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia,Universita Ca' Foscari Venezia
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- Coccetti, F. (author)
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Roma
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- Colusso, Elena (author)
- Dipartimento di Ingegneria Industriale (DII), Università degli Studi di Padova,Università Degli Studi di Padova,University of Padua
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- Ferrari, M. (author)
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Roma
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- Ghamgosar, Pedram, 1979- (author)
- Luleå tekniska universitet,Materialvetenskap,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Gonella, Francesco (author)
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Roma,Universita Ca' Foscari Venezia
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- Karlsson, Maths, 1978 (author)
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology,Chalmers tekniska högskola,Chalmers University of Technology
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- Martucci, Alessandro (author)
- Dipartimento di Ingegneria Industriale (DII), Università degli Studi di Padova,Università Degli Studi di Padova,University of Padua
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- Ottini, Riccardo (author)
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Mestre, Venezia,Universita Ca' Foscari Venezia
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- Riello, Pietro (author)
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Mestre, Venezia,Universita Ca' Foscari Venezia
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- Righini, Giancarlo C. (author)
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Roma,Istituto Di Fisica Applicata Nello Carrara
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- Trave, Enrico (author)
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Mestre, Venezia,Universita Ca' Foscari Venezia
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- Vomiero, Alberto (author)
- Luleå tekniska universitet,Materialvetenskap,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- You, Shujie (author)
- Luleå tekniska universitet,Materialvetenskap,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Zur, Lidia Z. (author)
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Roma
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(creator_code:org_t)
- Elsevier, 2018
- 2018
- English.
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In: Optical materials (Amsterdam). - : Elsevier. - 0925-3467 .- 1873-1252. ; 84, s. 668-674
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- In this paper we report the study of down-shifting silica-zirconia glass and glass-ceramic films doped by Tb3+ ions and Ag nanoaggregates, which combine the typical spectral properties of the rare-earth-ions with the broadband sensitizing effect of the metal nanostructures. Na-Tb co-doped silica-zirconia samples were obtained by a modified sol-gel route. Dip-coating deposition followed by annealing for solvent evaporation and matrix densification were repeated several times, obtaining a homogeneous crack-free film. A final treatment at 700 °C or 1000 °C was performed to control the nanoscale structural properties of the samples, resulting respectively in a glass (G) or a glass-ceramic (GC), where tetragonal zirconia nanocrystals are surrounded by an amorphous silica matrix. Ag introduction was then achieved by ion-exchange in a molten salt bath, followed by annealing in air to control the migration and aggregation of the metal ions. The comparison of the structural, compositional and optical properties are presented for G and GC samples, providing evidence of highly efficient photoluminescence enhancement in both systems, slightly better in G than in GC samples, with a remarkable increase of the green Tb3+ PL emission at 330 nm excitation: 12 times for G and 8 times for GC samples. Furthermore, after Ag-exchange, the shape of Tb3+ excitation resembles the one of Ag ions/nanoaggregates, with a broad significant absorption in the whole UV-blue spectral region. This broadband enhanced downshifting could find potential applications in lighting devices and in PV solar cells.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Keyword
- Sol-gel
- Ag nanoaggregates
- Broadband sensitizers
- Rare earths
- Downshifting
- Experimentell fysik
- Experimental Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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Enrichi, Frances ...
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Belmokhtar, Salo ...
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Benedetti, Alvis ...
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Bouajaj, Adel
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Cattaruzza, E.
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Coccetti, F.
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Colusso, Elena
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Ferrari, M.
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Ghamgosar, Pedra ...
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Gonella, Frances ...
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Karlsson, Maths, ...
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Martucci, Alessa ...
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Ottini, Riccardo
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Riello, Pietro
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Righini, Giancar ...
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Trave, Enrico
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Vomiero, Alberto
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You, Shujie
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Zur, Lidia Z.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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ENGINEERING AND ...
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and Materials Engine ...
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Luleå University of Technology
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Chalmers University of Technology