A brief review on red to near-infrared persistent luminescence in transition-metal-activated phosphors

作者：Zhuang Yixi^*; Katayama Yumiko; Ueda Jumpei; Tanabe Setsuhisa

来源：Optical Materials, 2014, 36(11): 1907-1912.

DOI：10.1016/j.optmat.2014.05.035

• Persistent luminescence
• Red to near-infrared luminescence
• Transition metal
• Chromium
• Manganese
• Band-gap engineering

In the past few years, red to near-infrared persistent phosphors activated by transition metals (Cr3+ or Mn2+) received much attention. The research was triggered by a recently proposed in vivo imaging application and it may show more significance in the future. In this review, we try to make a full list of known Cr3+ or Mn2+-activated compounds showing red to near-infrared persistent luminescence, which may be useful for further exploration of new compounds. We also notice that radiance (in units of W sr(-1) m(-2)) is even more suitable than luminance (in units of cd m(-2)) to quantify the brightness of red to near-infrared persistent phosphors for the in vivo imaging application. Finally, we discuss the mechanism of the persistent luminescence by taking an example of Cr3+-activated Zn-0.98(Ga1-xAlx)(2)O-3.98 Persistent phosphors.

• 出版日期2014-9