Synthesis, structure, and luminescence characteristics of far-red emitting Mn⁴⁺-activated LaScO₃perovskite phosphors for plant growth

Abstract

Far-red emitting Mn4+-activated LaScO3perovskite phosphors were investigated for indoor plant growth lighting.

Structurally induced tuning of the relative sensitivity of LaScO3:Cr3+ luminescent thermometers by co-doping lanthanide ions

“…In the unit cell of LaScO3, the Sc 3+ ions are surrounded by six O 2ions in the form of almost undistorted [ScO6] 9-octahedra. The octahedra share corners along one crystallographic direction and are tilted towards one another in an angle smaller than 90° (which gives rise to the lower symmetry than the cubic one) [49][50][51]. As reported by Huang et al an increase of the temperature causes the enlargement of the cell parameters manifested as a shift of the diffraction reflection toward smaller angles [52].…”

Improved Photoluminescence Properties of Bi3+, Mn4+-Codoped Orthorhombic LaGaO3 Perovskite Phosphor

“…[13][14][15] Moreover, the optical output of Mn 4+ ions can be modulated at germanates, 8 silicates, aluminates 16 host matrixes. Recently, Mn 4+ activated host matrixes with perovskite/double perovskite structure have been explored as, LaScO 3 , [17][18][19] LaGaO 3 , 20 LaAlO 3 , 21 A 2 ZnTiO 6 (A = Pr, Gd), 22 Ba 2 GdNbO 6 , 23 Y 2 MgTiO 6 24 etc. on account of their facile synthesis, good optical properties and high chemical stability.…”