The photoluminescence of Mn2+ in ZnS:Mn2+ nanoparticles with an average siz
e of 4.5 nm has been measured under hydrostatic pressure from 0 to 6 GPa. T
he emission position is red-shifted at a rate of -33.3+/-0.6meV/GPa, which
is in good agreement with the calculated value of -30.4meV/GPa using the cr
ystal field theory. (C) 2000 Elsevier Science B.V. All rights reserved.