Анотація:
Fine-dispersed ZnS doped with Cu was prepared using self-propagating hightemperature
synthesis. In the photoluminescence excitation spectra, the blue shift of the
host lattice excitation peak is observed for powder ZnS:Cu that contains nano- and mesosized
(submicron) particles. The obtained spectra indicate that radiative recombination in
meso-sized particles is significantly reduced as compared to micro-sized particles, which
can be caused by the increase of non-radiative relaxation processes in surface states.