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Updated: Jun 8, 2025

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
What is the key factor affecting the cathodoluminescence intensity of europium complexes?
Rongdeng Lu1, Tinghui Huang1, Alexander Goloveshkin2
1M.V. Lomonosov Moscow State University, 1/3 Leninskye Gory, Moscow, 119991, Russia. valentina@utochnikova.ru.
Abstract:
In order to substitute well-studied but hard-to-deposit inorganic cathodoluminescent (CL) compounds with coordination compounds and organic ligands, it is primarily important to establish CL correlation with photoluminescence and increase CL intensity. In this paper, homo- and mixed-ligand 1,4-terephthalates and naphthalene-2,6-carboxylates of europium were studied, including a novel complex (Eu2(nda)3(BPhen)2(H2O)4) whose crystal structure was determined. They were found to display luminescence of various intensities under excitation by fast electrons, which is characteristic of Eu3+. CL intensity correlated with PLQY when the saturation regime was not reached and with PLQY/τ in the saturation regime.
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