Enhancement of Pr{sup 3+} luminescence in PbO-GeO{sub 2} glasses containing silver nanoparticles

Journal Article · Mon Dec 12 00:00:00 EST 2005 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2143135· OSTI ID:20706488

Naranjo, Luz Patricia; Araujo, Cid B. de; Malta, Oscar L; Cruz, Petrus A. Santa; Kassab, Luciana R. P. ^[1]

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1. Programa de Ciencia de Materiais, Universidade Federal de Pernambuco, 50740-540 Recife, PE (Brazil)

Pr{sup 3+}-doped PbO-GeO{sub 2} (PGO) glasses containing silver nanoparticles (NPs) were prepared and their spectroscopic characteristics were studied. The PGO samples and the nucleation of silver NP were obtained melting the starting oxide powders, quenching and annealing. Transmission electron microscopy was used to characterize the NP size distribution. Isolated silver particles with average diameter of 2 nm and aggregates with dimensions smaller than 100 nm were observed. Optical absorption and luminescence experiments were performed to investigate the properties of the composite system. Enhancement of the Pr{sup 3+} ions' luminescence was observed due to the presence of the silver NP.

• OSTI ID: 20706488
• Journal Information: Applied Physics Letters, Vol. 87, Issue 24; Other Information: DOI: 10.1063/1.2143135; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION
ANNEALING
COMPOSITE MATERIALS
DOPED MATERIALS
GERMANIUM OXIDES
LEAD OXIDES
LUMINESCENCE
MELTING
METALLIC GLASSES
NANOSTRUCTURES
PARTICLE SIZE
PARTICLES
POWDERS
PRASEODYMIUM IONS
QUENCHING
REINFORCED MATERIALS
SILVER
TRANSMISSION ELECTRON MICROSCOPY
VISIBLE SPECTRA