Study of absorption, emission and EDS properties of Pr3+ incorporated in a SiO2 matrix by sol-gel method

7th International Congress of Engineering Physics

物理学;工业技术

Gómez-Miranda, M.^1 ; Velásquez Ordoñez, C.^2 ; Sosa Fonseca, R.S.^1

Physics Departement Universidad Autónoma Metropolitana- Iztapalapa, México, PO BOX 55-532, Distrito Federal, Mexico^1

Universidad de Guadalajara, Centro Universitario de Los Valles Centro de Investigation en Nanociencia y Nanotecnologia de la, Depto. de Ciencias Naturales y Exactas Ameca Jal., Mexico^2

关键词: Absorption and emission spectra;    Emission spectrums;    Ion interactions;    NIR emission;    Optical response;    Praseodymium ions;    Silicate glass;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/582/1/012039/pdf
DOI  :  10.1088/1742-6596/582/1/012039

学科分类：工业工程学

来源: IOP

【 摘 要 】

The optical response of the Pr3+ions doped monolith of SiO2prepared by sol-gel method was investigated by absorption and emission spectra. The absorption spectrum shows some typical lines of Pr3+, with these data was made the diagram levels corresponding to SiO2: Pr3+. 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 Pr3+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 Pr3+ions in SiO2was observed. The transition1S03P2at 425 nm is observed because an effective radiative transfer between the silicate glasses host and the praseodymium ions is observed and discussed.