“…Photoluminescence properties of CaMoO4:Eu 3+ have been extensively studied in bulk samples, 5,6,7,8 microparticles 3,9,10,11 and different types of nanoparticles. 12,13,14,15 However, very little attention has been paid to the substitution mechanism and crystal structure of Eu 3+ :CaMoO4 phosphors. In our recent paper on the photoluminescence of peanut-like CaMoO4:1%Eu 3+ architectures, we found that the unit cell parameters of the Eu 3+ -doped sample were slightly higher than those of the undoped material, in spite of the smaller ionic radius of Eu 3+ compared with Ca 2+ in eight-fold coordination.…”