Fig. 4From: Green-Emitting Gd3Ga5O12: Tb3+ Nanoparticles Phosphor: Synthesis, Structure, and LuminescenceAFM surface image (a) and grain-size distribution diagram (b) of Gd3Ga5O12 with 1 mol % Tb3+ ions synthesized via co-precipitation method with 400 g/mol of polyethylene glycolBack to article page