What is it about?
We unravel the structural complexity of rare-earth containing chalcogenide glasses using a combination of x-ray diffraction neutron diffraction with isomorphic substitution.
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Why is it important?
We investigate the structural origin of rare-earth clustering in chalcogenide glasses, which are exemplars of luminescent materials whose optical properties are engineered by (i) the adoption of a rare-earth host-matrix having low phonon energies, and (ii) co-doping the rare-earth ions with charge compensating elements. In particular, we obtain site-specific structural information on these materials by using the method of neutron diffraction with rare-earth isomorphic substitution. The results reveal both the coordination environment of the rare-earth ions, and the nature of the networks in which these ions are incorporated. This information is important for the development of new glass structures with tailored luminescent properties.
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This page is a summary of: Structure of rare-earth chalcogenide glasses by neutron and x-ray diffraction, Journal of Physics Condensed Matter, April 2017, Institute of Physics Publishing, DOI: 10.1088/1361-648x/aa68c0.
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