A europium (Eu)‐doped di‐calcium magnesium di‐silicate phosphor, Ca
2MgSi
2O
7:Eu
2+, was prepared using a solid‐state reaction method. The phase structure, particle size, surface morphology, elemental analysis, different stretching mode and luminescence properties were analyzed by X‐ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM) with energy dispersive X‐ray spectroscopy (EDX), Fourier transform infrared (FTIR) spectroscopy, photoluminescence (PL) and mechanoluminescence (ML). The phase structure of Ca
2MgSi
2O
7:Eu
2+ was an akermanite‐type structure, which belongs to the tetragonal crystallography with space group P4?2
1m; this structure is a member of the melilite group and forms a layered compound. The surface of the prepared phosphor was not found to be uniform and particle distribution was in the nanometer range. EDX and FTIR confirm the components of Eu
2+‐doped Ca
2MgSi
2O
7 phosphor. Under UV excitation, the main emission peak appeared at 530 nm, belonging to the broad emission ascribed to the 4f
65d
1→4f
7 transition of Eu
2+. The ML intensity of the prepared phosphor increased linearly with increasing impact velocity. A CIE color chromaticity diagram and ML spectrum confirmed that the prepared Ca
2MgSi
2O
7:Eu
2+ phosphor would emit green color and the ML spectrum was similar to that of PL, which indicated that ML is emitted from the same center of Eu
2+ ions. Copyright © 2015 John Wiley & Sons, Ltd.
相似文献