UV-A,B,C Emitting Persistent Luminescent Materials

The nearly dormant field of persistent luminescence has gained fresh impetus after the discovery of strontium aluminate persistent luminescence phosphor in 1996. Several efforts have been put in to prepare efficient, long decay, persistent luminescent materials which can be used for different applications. The most explored among all are the materials which emit in the visible wavelength region, 400-650 nm, of the electromagnetic spectrum. However, since 2014, the wavelength range is extended further above 650 nm for biological applications due to easily distinguishable signal between luminescent probe and the auto-fluorescence. Recently, UV-emitting persistent materials have gained interest among researchers' due to their possible application in information storage, phototherapy and photocatalysis. In the present review, we summarize these recent developments on the UV-emitting persistent luminescent materials to motivate young minds working in the field of luminescent materials.

Automated summary

The field of persistent luminescence, which had been largely dormant, gained new momentum with the discovery of strontium aluminate phosphor in 1996. Extensive efforts have been made to develop efficient and long-lasting persistent luminescent materials for various applications. The most explored materials emit in the visible wavelength range of 400-650 nm, but the range has been extended beyond 650 nm for biological applications since 2014. Recently, UV-emitting persistent materials have attracted interest for their potential in information storage, phototherapy, and photocatalysis. This review summarizes the recent developments in UV-emitting persistent luminescent materials to inspire young researchers in the field.