Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1237175 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2010 | 4 Pages |
Abstract
Transparent glasses were prepared by conventional melting–quenching method in the xMoO3·(100 − x)[3B2O3·PbO] system where 0 ≤ x ≤ 15 mol%. By increasing the MoO3 content up to 20 mol% the PbMoO4 crystalline phase appears. These systems exhibit a photochromic effect which can be induced through laser exposures (λ = 633 nm) directly on the bulk sample. Structural investigations by FTIR spectroscopy show that the photosensitive effect is due to a reduction of Mo6+ to Mo4+ and/or Mo5+ promoted by the oxidation of Pb2+ and some structural changes of the borate network.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
M. Rada, V. Maties, M. Culea, S. Rada, E. Culea,