Sebastian Mahlik

This paper analyzes the influence of pressure on electron–lattice interactions in the 5d excited states of Ce 3+ and Eu 2+ in the AlN host based on pressure-dependent photoluminescence and photoluminescence excitation spectra.

CuLaO 2 shows green luminescence upon blue excitation. The depreciation of this luminescence in the 100–400 K range is ascribed to a radiative re-absorption and a crossover to the Cu + -to-La 3+ metal-to-metal charge transfer ( i . e . excitonic) states.