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Search: WFRF:(Nalin Marcelo)

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  • Fares, Hssen, et al. (author)
  • Tuning multicolor emission in AgNCs/Tm3+/Mn2+-doped fluorophosphate glasses
  • 2020
  • In: Journal of Non-Crystalline Solids. - : Elsevier BV. - 0022-3093. ; 535
  • Journal article (peer-reviewed)abstract
    • 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).
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Valenta, Jan (1)
Rosa Da Silva, Robso ... (1)
Ribeiro, Sidney J.L. (1)
Fares, Hssen (1)
Castro, Tarcio (1)
Franco, Douglas Faza (1)
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Fucikova, Anna (1)
Nalin, Marcelo (1)
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University
Chalmers University of Technology (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2020 (1)

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