Figure 2
From: A novel optical thermometry based on the energy transfer from charge transfer band to Eu3+-Dy3+ ions
(a) Unit cell parameters of a (Å) and (b) c (Å) and (c) unit cell volume (Å3) at different Eu3+ concentration in tetragonal SrWO4: x Eu3+, 4 mol% Dy3+ (x = 0, 0.2 mol%, 0.4 mol%, 0.6 mol%, 0.8 mol%, 1 mol%).
