Detection of Up-converted Persistent Luminescence in the Near Infrared Emitted by the Zn3Ga2GeO8:Cr3+, Yb3+, Er3+ Phosphor

Author(s): Feng Liu, Yanjie Liang, and Zhengwei Pan

Persistent luminescence, lasting more than 24 hours, is generated in a new phosphor compound via an upconversion process.

[Phys. Rev. Lett. 113, 177401] Published Tue Oct 21, 2014