Sr-5(PO4)(3)Cl:Eu2+ nano/microcrystals with a variety of morphologies, such as nanorod, submicroshperes, nanoparticles, and nanospheres, have been synthesized via a facile hydrothermal route. The effect of phosphate source and surfactant on the morphologies and sizes has been studied. A systematic study on the photoluminescence of Sr-5(PO4)(3)Cl:Eu2+ with different microstructures has shown that the optical properties of these phosphors are strongly dependent on their morphologies and sizes. This synthetic methodology provides a new gateway to other Eu2+ doped luminescent materials. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.