Novel color-tunable Gd₂O₂CN₂:Tb³⁺, Eu³⁺ phosphors: Characterization and photoluminescence properties

Shuanglong Yuan (1) , Luting Wang (1) , Yunxia Yang (1) , François Cheviré (2) , Franck Tessier (2) , Guorong Chen (1)

1 Key Laboratory for Ultrafine Materials
2 ISCR - Institut des Sciences Chimiques de Rennes

In this paper, color-tunable Gd₂O₂CN₂:Tb³⁺, Eu³⁺ phosphors were obtained by co-doping Eu³⁺ and Tb³⁺ ions into Gd₂O₂CN₂ host and singly varying the Eu³⁺ doping concentration. The characteristics of the crystal structure, photoluminescence lifetime and photoluminescence of Tb³⁺, Eu³⁺ single-doped and Tb³⁺and Eu³⁺ co-doped Gd₂O₂CN₂, were carefully investigated by XRD, FTIR, PL decay curves and photoluminescence (PL). The results indicated that Tb³⁺ single-doped Gd₂O₂CN₂ phosphor show a green emission, and by increasing Eu³⁺ content, Gd₂O₂CN₂:Tb³⁺, Eu³⁺ phosphors emit green to orange and then to red light under the excitation of 379 nm

Mots clés: Color-tunable phosphors; Gd2O2CN2:Tb3+; Eu3+; Photoluminescence

Domaines: Chimie; Matériaux

Shuanglong Yuan, Luting Wang, Yunxia Yang, François Cheviré, Franck Tessier, et al.. Novel color-tunable Gd₂O₂CN₂:Tb³⁺, Eu³⁺ phosphors: Characterization and photoluminescence properties. Ceramics International, 2016, 42 (10), pp.12508-12511. ⟨10.1016/j.ceramint.2016.04.059⟩. ⟨hal-01302508⟩