Photoluminescence of Eu 2+ ‐Doped Strontium Cyanamide: A Novel Host Lattice for Eu 2+

Eu 2+ ‐doped SrCN 2 with different Eu 2+ contents were prepared by a high‐temperature solid‐state reaction under NH 3 atmosphere. SrCN 2 has an energy gap of 4.56 eV by the reflection spectra. The photoluminescence spectra of SrCN 2 :Eu 2+ at different temperatures were measured. The results show that Eu 2+ ‐doped SrCN 2 shows a broad band emission with a peak at 610 nm when it is excited by 350–520 nm at 77 K. With the temperature increasing, the emission intensity decreases remarkably, indicating that Eu 2+ ‐doped SrCN 2 has a low quenching temperature.