Publications

Authors:

Hu, Xiaowu; Piccinelli, Fabio; Ruggieri, Silvia; Camarero Linares, Pablo; Haro, Patricia; Bettinelli, Marco

Title:

Energy transfer processes leading to strong NIR-to-red upconversion in the Yb-concentrated Sr3Yb0.98Er0.02(PO4)3 eulytite

Year:

2024

Type of item:

Articolo in Rivista

Tipologia ANVUR:

Articolo su rivista

Language:

Inglese

Format:

Elettronico

Referee:

Sì

Name of journal:

OPTICAL MATERIALS. X

ISSN of journal:

2590-1478

N° Volume:

24

Page numbers:

100358-100363

Keyword:

Energy transfer; Luminescence; Rare earth ions; Upconversion

Short description of contents:

The optical spectroscopy and the decay kinetics of samples with composition Sr3Yb(PO4)3, Sr3Y0.98Yb0.02(PO4)3, Sr3Y0.98Er0.02(PO4)3 and Sr3Yb0.98Er0.02(PO4)3 have been studied at room temperature. The presence of efficient energy transfer and migration processes has been clearly evidenced in the Sr3Yb(PO4)3 and Sr3Yb0.98Er0.02(PO4)3 materials, giving rise to strong visible upconversion upon excitation in the spectral region around 1 μm in the latter material. The strong anti-Stokes emission is connected to fast migration in the 2 F5/2 level of Yb3+, due to the inefficient concentration quenching for this ion. In this class of materials, the upconversion processes could be optimized even in the presence of high concentrations of the Yb3+ sensitizer.

Product ID:

142016

Handle IRIS:

11562/1144111

Last Modified:

October 27, 2024

Bibliographic citation:

Hu, Xiaowu; Piccinelli, Fabio; Ruggieri, Silvia; Camarero Linares, Pablo; Haro, Patricia; Bettinelli, Marco, Energy transfer processes leading to strong NIR-to-red upconversion in the Yb-concentrated Sr3Yb0.98Er0.02(PO4)3 eulytite «OPTICAL MATERIALS. X» , vol. 24 , 2024 , pp. 100358-100363

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