Tuning multicolor emission in AgNCs/Tm3+/Mn2+-doped fluorophosphate glasses
Artikel i vetenskaplig tidskrift, 2020

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).

Visible emission

Multicomponent fluorophosphate glasses

Sensitization lanthanide and metal ions

Silver nanoclusters

Författare

Hssen Fares

Universidade Estadual Paulista (UNESP)

Tarcio Castro

Univerzita Karlova v Praze

Douglas Faza Franco

Universidade Estadual Paulista (UNESP)

Anna Fucikova

Univerzita Karlova v Praze

Robson Rosa Da Silva

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Kasper Moth-Poulsen Group

Jan Valenta

Univerzita Karlova v Praze

Sidney J.L. Ribeiro

Universidade Estadual Paulista (UNESP)

Marcelo Nalin

Universidade Estadual Paulista (UNESP)

Journal of Non-Crystalline Solids

0022-3093 (ISSN)

Vol. 535 119968

Ämneskategorier

Atom- och molekylfysik och optik

Den kondenserade materiens fysik

DOI

10.1016/j.jnoncrysol.2020.119968

Mer information

Senast uppdaterat

2020-04-23