Ultra-broad Near-Infrared Emitting Phosphor LiInF: Cr with Extremely Weak Crystal Field.

Recent decades have witnessed a major development in broadband near-infrared (NIR)-emitting phosphors because of their potential applications in real-time nondestructive examination. These applications require the emission spectra of phosphors to be as broad as possible for efficient performance. Therefore, a blue-light excited LiInF: Cr phosphor with a NIR emission covering 700-1400 nm is successfully synthesized.

A new broadband near-infrared emitting MgAlSiO:Cr phosphor for night-vision imaging.

Phosphor-converted light-emitting diodes (pc-LEDs) have important applications in security surveillance and food testing. However, developing new broadband near-infrared phosphors remains an important issue. Herein, the high-temperature solid-state reaction method was applied to synthesize a new type of Cr doped MgAlSiO broadband NIR phosphor which matches a blue LED chip.

A novel Cr-doped LuCaMgSiO garnet phosphor with broadband emission for near-infrared applications.

Near-infrared (NIR) phosphor-converted light emitting diode (pc-LED) light sources have broad application prospects in environmental science, biomedical and plant growth fields. However, NIR phosphors still suffer from narrowband emission and low thermal stability. Here, we prepared a novel Lu2CaMg2-xSi3O12:xCr3+ (LCMS:xCr3+, x = 0.