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Updated: Dec 21, 2025

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
Unravelling the Origin of the Yellow-Orange Luminescence in Natural and Synthetic Scapolites
Féodor Blumentritt1, Camille Latouche1, Yann Morizet1,2
1Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France.
Abstract:
After decades of speculation without material proof, the yellow-orange luminescence of scapolite is definitely assigned to (S2)- activators trapped in [Na4] square cages. Synthetic sulfur-doped scapolites confirm the implication of sulfur species in luminescence. Formally, the emission and excitation spectra of various polysulfide species were calculated. The excellent match between theory and experiments for (S2)- dimers provides definitive proof that it is the cause of the yellow-orange luminescence in scapolite.
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