The Role of Activator-Activator Interactions In Reducing in Low-Voltage-Cathodoluminescence Efficiency in Eu and Tb Doped Phosphors
Description:
High resolution measurements of spectrally resolved cathodoluminescence (CL) decay have been made in several commercial and experimental phosphors doped with Eu and Tb at beam energies ranging from 0.8 to 4 keV. CL emission from the lowest two excited states of both rare earth activators was compared to the decay of photoluminescence (PL) after pulsed laser excitation. We find that, at long times after the cessation of electron excitation, the CL decay rates are comparable to those measured in …
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Date:
December 8, 1999
Creator:
SEAGER,CARLETON H. & TALLANT,DAVID R.
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