MgNb2O6:Dy3+ nanophosphor: A facile preparation, down conversion photoluminescence and UV driven photocatalytic properties

Luminous LaAlO3:Dy3+ perovskite nanomaterials: Synthesis, structural, and luminescence characteristics for white light‐emitting diodes

“…The excitation spectrum exhibited numerous peaks at 302, 325, 351, 365, 388, 427, 453, and 476 nm accredited to transitions initiated from 6 H 15/2 to the higher energy levels, 4 H 11/2 + 4 G 9/2 , 6 P 3/2 , 6 P 7/2 , 6 P 5/2 , 4 F 7/2 , 4 G 11/2 , 4 I 15/2 , and 4 F 9/2 respectively. [ 37–40 ] In particular, a dominant band ( 6 H 15/2 → 6 P 7/2 ) was observed at 351 nm. The PL spectrum of the La 1‐x AlO 3 :xDy 3+ (x = 0.01–0.07) nanophosphor was recorded at the λ ex of 351 nm.…”

“…Table 4 summarizes the atomic % along with weight % details of the considered nanophosphors. [37][38][39][40] In particular, a dominant band ( 6 H 15/2 ! 6 P 7/2 ) was observed at 351 nm.…”

“…Figure 8 illustrates photoluminescence excitation (PLE) spectrum of the Dy 3+ -doped LaAlO 3 phosphor examined at a wavelength of 575 nm. The excitation spectrum exhibited numerous peaks at 302, 325, 351, 365, 388, 427, 453, and 476 nm accredited to transitions initiated from6 H 15/2 to the higher energy levels, 4 H 11/2 + 4 G 9/2 , 6 P 3/2 , 6 P 7/2 , 6 P 5/2 , 4 F 7/2 , 4 G 11/2 , 4 I 15/2 , and 4 F 9/2 respectively [37][38][39][40]. In…”

Low temperature‐synthesized MgAl2O4:Eu3+ nanophosphors and their structural validations using density functional theory: photoluminescence, photocatalytic, and electrochemical properties for multifunctional applications

“…Therefore, the experimental photodecolouration results were 96% after 135 min due to scavengers blocking the electrons, OH • radicals and holes and verified that holes (h + ) are primarily responsible for photodecolouration. [ 80,81 ]…”

Ultra-sensitive luminescence thermometry based on MgNb2O6:Dy3+/Pr3+ thermochromic phosphors

“…1(c) contains MgO 6 and NbO 6 octahedra and the doped Dy 3+ and Pr 3+ ions occupy the six-coordinated Mg 2+ sites. 22,23 Compared with standard MNO, the cell parameters (a, b, c and V) of the MNO:Dy 3+ /Pr 3+ sample present an increasing trend, due to the substitution of larger Dy 3+ (CN = 6, r = 0.91 Å, CN is coordination number, and r is ionic radius) and Pr 3+ (CN = 6, r = 0.99 Å) ions in Mg 2+ ions (CN = 6, r = 0.72 Å). As shown in Fig.…”