Efficient solar-blind ultraviolet detection based on a Sn

As an effective method to improve the sensitivity of detection, spectral conversion technology has been widely used in solar-blind ultraviolet communication (UVC). However, producing a spectral converter with high efficiency, short decay lifetime, and excellent stability in the field of UVC detection remains an outstanding challenge. In this Letter, a kind of ${{\rm Sn}^{2 + }}$Sn