Photoluminescence of Eu²⁺-Doped Strontium Cyanamide: A Novel Host Lattice for Eu²⁺

Shuanglong Yuan (1, 2) , Yunxia Yang (2) , François Cheviré (1) , Franck Tessier (1) , Xianghua Zhang (1) , Guorong Chenz (2)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 EAST CHINA UNIVERSITY

Eu²⁺-doped SrCN₂ with different Eu²⁺ contents were prepared by a high-temperature solid-state reaction under NH₃ atmosphere. SrCN₂ has an energy gap of 4.56 eV by the reflection spectra. The photoluminescence spectra of SrCN₂:Eu²⁺ at different temperatures were measured. The results show that Eu²⁺-doped SrCN₂ 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 Eu²⁺-doped SrCN₂ has a low quenching temperature.

Domaines: Matériaux

Shuanglong Yuan, Yunxia Yang, François Cheviré, Franck Tessier, Xianghua Zhang, et al.. Photoluminescence of Eu²⁺-Doped Strontium Cyanamide: A Novel Host Lattice for Eu²⁺. Journal of the American Ceramic Society, 2010, 93 (10), pp.3052-3055. ⟨10.1111/j.1551-2916.2010.04025.x⟩. ⟨hal-00608655v2⟩