Open AccessStudy of absorption, emission and EDS properties of Pr3+incorporated in a SiO2matrix by sol-gel method
Author(s) -
M Gómez-Miranda,
Celso Velásquez Ordoñez,
Rebeca Sosa Fonseca
Publication year - 2015
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/582/1/012039
Subject(s) - analytical chemistry (journal) , ion , emission spectrum , praseodymium , materials science , absorption (acoustics) , absorption spectroscopy , sol gel , spectral line , chemistry , optics , physics , nanotechnology , organic chemistry , chromatography , astronomy , metallurgy , composite material
The optical response of the Pr 3+ ions doped monolith of SiO 2 prepared by sol-gel method was investigated by absorption and emission spectra. The absorption spectrum shows some typical lines of Pr 3+ , with these data was made the diagram levels corresponding to SiO 2 : Pr 3+ . The emission spectra were taken at 225 nm and 240 nm of wavelength of excitation was measured. In that there are reabsorption line at 423 of the Pr 3+ ions in the emission host, that means that some kind of host-ion interactions exist. Red and NIR emission at 612 nm, 652 nm, 711 and 728 nm, respectively, from Pr 3+ ions in SiO 2 was observed. The transition 1 S 0 → 3 P 2 at 425 nm is observed because an effective radiative transfer between the silicate glasses host and the praseodymium ions is observed and discussed.