Open AccessCollective Optical, FTIR, and Photoluminescence Spectra of CeO2 and/or Sm2O3-Doped Na2O–ZnO–P2O5 Glasses
Author(s) -
M. A. Marzouk,
H.A. ElBatal,
Y.M. Hamdy,
F.M. Ezz-Eldin
Publication year - 2019
Publication title -
international journal of optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.263
H-Index - 17
eISSN - 1687-9392
pISSN - 1687-9384
DOI - 10.1155/2019/6527327
Subject(s) - photoluminescence , dopant , samarium , analytical chemistry (journal) , materials science , doping , cerium , fourier transform infrared spectroscopy , ion , photoluminescence excitation , luminescence , absorption spectroscopy , absorption (acoustics) , spectral line , infrared spectroscopy , inorganic chemistry , optics , chemistry , physics , optoelectronics , organic chemistry , chromatography , astronomy , metallurgy , composite material
Glasses with the Na 2 O–ZnO–P 2 O 5 composition and doped with single CeO 2 , Sm 2 O 3 , or mixed dopants were melted and studied. Collective optical, photoluminescence, and FT-infrared spectral studies were carried out. CeO 2 -doped glasses show two extra UV absorption bands due to Ce 4+ and Ce 3+ ions while Sm 2 O 3 -doped samples reveal pronounced peaks collected into two segments from 367 to 472 nm and from 950 to 1623 nm which are characteristic of absorption from Sm 3+ ions. The mixed dopants glasses show combined UV-visible–near-IR absorption peaks due to cerium (Ce 4+ , Ce 3+ ) ions and samarium (Sm 3+ ) ions. The photoluminescence spectra (PL) of the single CeO 2 -doped and Sm 2 O 3 -doped glasses and even the mixed dopant sample reveal luminescence spectra after excitation which are characteristic of the rare-earth ions. The intensities for both excited or emitted peaks are found to increase with the increase of the rare-earth percent. FTIR spectra of the glasses show pronounced vibrational peaks related to phosphate groups (Q 2 and Q 3 units) in accordance with the P 2 O 5 percent (70 mol %).