Crystal structure controlled energy transfer to Tb3+ in KTb(MoO4)2 and K5Tb(MoO4)4 crystals
Luminescent properties of KTb(MoO4)2 and K5Tb(MoO4)4 crystals, possessing the same elemental composition but different crystal structures, were studied. The structural arrangement of Tb3+ ions, ordered in KTb(MoO4)2 and disordered in K5Tb(MoO4)4, determines their luminescence properties. Partial lattice disorder of K5Tb(MoO4)4 results in broadened bands of Tb3+ emission and excitation spectra, but
