A new red phosphor Ca3SiO4Cl2:Sm3+ has been synthesized and its luminescent properties<br> have been investigated. The X-ray powder diffraction (XRD) was measured for studying the host<br> structure. The excitation and emission spectra were measured at room temperature. The effect of Sm3+<br> ion content on the luminescent intensity and concentration quenching mechanism were studied. The<br> results suggest that this phosphor maybe a good candidate of red phosphor for near UV-based white
