| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1494096 | Optical Materials | 2014 | 4 Pages |
•Single phase of Ca2Si5N8:Eu2+, Tm3+, Dy3+ tridoped phosphor was obtained.•Effects of Dy3+ on the luminescent properties of CSN:E,T,D have been investigated.•Enhanced performance of CSN:E,T,D phosphor by co-doping with Dy3+ was achieved.•Balanced defect trap’s micro-environment is helpful for enhanced performance.
Two types of reddish-orange afterglow emitting nitride phosphors Ca2Si5N8:Eu2+, Tm3+ (CSN:E, T) and Ca2Si5N8:Eu2+, Tm3+, Dy3+ (CSN:E, T, D) were synthesized via a solid-state reaction route and were comparatively investigated. Comparing with the di-doped CSN:E, T phosphor, the tri-doped CSN:E, T, D samples show higher afterglow intensity and longer duration time which can be attributed to the balanced defect micro-environment caused by the presence of Dy3+.
