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Tuning multicolor e...
Tuning multicolor emission in AgNCs/Tm3+/Mn2+-doped fluorophosphate glasses
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- Fares, Hssen (författare)
- Universidade Estadual Paulista (UNESP),São Paulo State University (UNESP)
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- Castro, Tarcio (författare)
- Univerzita Karlova,Charles University
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- Franco, Douglas Faza (författare)
- Universidade Estadual Paulista (UNESP),São Paulo State University (UNESP)
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- Fucikova, Anna (författare)
- Univerzita Karlova,Charles University
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- Rosa Da Silva, Robson, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Valenta, Jan (författare)
- Univerzita Karlova,Charles University
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- Ribeiro, Sidney J.L. (författare)
- Universidade Estadual Paulista (UNESP),São Paulo State University (UNESP)
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- Nalin, Marcelo (författare)
- Universidade Estadual Paulista (UNESP),São Paulo State University (UNESP)
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(creator_code:org_t)
- Elsevier BV, 2020
- 2020
- Engelska.
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Ingår i: Journal of Non-Crystalline Solids. - : Elsevier BV. - 0022-3093. ; 535
- Relaterad länk:
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Herein we report the synthesis of highly-doped silver nanocluster in fluorophosphate glasses through the melting-quenching method in order to achieve sensitization with Tm3+ and Mn2+ ions. Blue and red emission belonging to Tm3+ (470 to 490 nm) and Mn2+ (550 to 750 nm) ions could be obtained via non-resonant excitation of Tm3+ and Mn2+. Slight decrease of the fluorescence decay times confirmed an energy transfer as a possible mechanism to explain the Tm3+ and Mn2+ emission. The composition of 5 mol% of AgNO3, 0.4 mol% of Tm2O3 and 0.2 mol% of MnF2 in our sample leads to distance between donor (silver nanoclusters) and acceptor (Tm3+-Mn2+) as short as 11 Å, which suggests that the main mechanism for blue and red emission from Tm3+ and Mn2+ is Förster Resonance Energy Transfer (FRET). The results presented here show that the studied material has potential application for multicolor generation as luminophore in white light emitting diodes (W-LED).
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Visible emission
- Multicomponent fluorophosphate glasses
- Sensitization lanthanide and metal ions
- Silver nanoclusters
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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