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Characterization and X‐ray Photoelectron Spectroscopy Investigation of PbO‐Bi 2 O 3 ‐Ga 2 O 3 Glasses
Author(s) -
Heo Jong,
Kim Choon Gon,
Kim You Song
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08483.x
Subject(s) - x ray photoelectron spectroscopy , ternary operation , crystallography , spectral line , materials science , x ray , analytical chemistry (journal) , chemistry , nuclear magnetic resonance , optics , physics , organic chemistry , astronomy , computer science , programming language
XPS Ols spectra were recorded for glasses in the binary PbO‐Ga 2 O 3 and ternary PbO‐Bi 2 O 3 ‐Ga 2 O 3 systems. Large shoulders with chemical shifts of 1.4 to 1.9 eV were observed in the Ols spectra recorded from PbO‐Ga 2 O 3 glasses. These shoulders were attributed to the presence of nonbridging oxygens in the structure. The shoulders indicated that, contrary to previous results, PbO was a network modifier as well as a charge compensator and network former. The addition of Bi 2 O 3 reduced the number of nonbridging oxygens and, therefore, it was classified as an intermediate. Ga 2 O 3 seemed to form GaO 4 − tetrahedra, constituting the backbone of the network structure. Glasses in the PbOBi 2 O 3 ‐Ga 2 O 3 system had their IR cutoff edges located at 7 μm with glass transition temperatures in the range of 320° to 400°C.