A high-efficiency double perovskite phosphor SrLaNaTeO6:Mn4+: Potential applications in w-LEDs and indoor plant growth lighting

An efficient rare-earth free deep red-emitting GdGeSbO6:Mn4+ phosphor for white light-emitting diodes

“…To overcome these limitations and create warm WLEDs with a higher color rendering index, researchers have developed two innovative strategies: (1) the mixing of red phosphors with yellow phosphors excited by a blue chip, and (2) the use of a UV/near-UV chip for the excitation of tricolored (green, blue and red) phosphors. 6–10 In addition, full-spectrum WLEDs, as another WLED technology, have also been widely researched in the WLED field due to their excellent color fidelity and visual comfort. 11,12 But at present, the technology is also facing the inadequacy of the red spectral component, especially the deep red spectra, which is not able to satisfy the demand for full-spectrum lighting.…”

Fluorescence properties of novel deep-red phosphor LiMg4SbO7:Mn4+ with excellent quantum efficiency and color purity for warm white LEDs

“…8 In addition, compared to rare earth ions, Mn 4+ has a significant price advantage, so it has received widespread attention. Therefore, researchers have developed a series of Mn 4+ -activated red fluorescent materials, mainly focusing on metallic oxide as the matrix, such as La 2 LiTaO 6 :Mn 4+ , 9 SrLaNaTeO 6 :Mn 4+ , 10 Sr 2 LuNbO 6 :Mn 4+ , 11 etc .…”