Abstract
The luminescence of europium ions in lanthanum trifluoride nanocrystals are measured, with and without thenoyltrifluroacetate (TTA) sensitisers. It is found that the luminescence from the Eu3+ is constant in intensity and frequency without TTA; with the TTA the intensity is seen to degrade significantly with exposure to pump light. A number of possibilities for this are explored.
It was intended to include the nanocrystals in polymer films to measure the gain possible; this is explored theoretically. The losses that might be expected using scattering theory are calculated, and using this the gain requirements for nett optical transparency are calculated.