The Mn4+-doped K3TaOF6 red phosphor presents an obvious intense zero photon line emission and the color purity as high as 96.4% under 470 nm light irradiation.
Phytochrome and phytochrome-controlled physiological responses take an important role for plant growth. The emission of LaAlO3:Mn4+ partly matches with the absorption spectrum of the PFR region. However, the luminescence efficiency...