Luminescence properties of a new red long-lasting phosphor: Mg2SiO4:Dy3+, Mn2+

A kinetics model of red long-lasting phosphorescence in MgSiO3:Eu2+, Dy3+, Mn2+

“…The excitation spectrum consists of a strong band peaked at 187 nm from the host absorption, and several peaks in the range of 300-500 nm, which are ascribed to the 3d → 3d transitions of Mn 2+ with the strongest one at 413 nm ( 6 A 1 ( 6 S) → 4 A 1 ( 4 G)). The assignment of Mn 2+ excitation spectrum is similar to the case of Mg 2 SiO 4 :Mn 2+ , which has been discussed in our previous paper [6]. According to the location of the host absorption (187 nm), the energy gap of MgSiO 3 is estimated as 6.6 eV.…”

Ionoluminescence studies of combustion synthesized Dy3+ doped nano crystalline forsterite

“…The average particle size (D) was estimated to be in the range 50e60 nm from the line broadening in X-ray powder using Scherrer's formula, D¼(Kl)/b cosq, where, 'K' is a constant (0.9 for spherical shape [17]), 'l' wavelength of X-rays, and 'b' FWHM [18]. [19,20]. The IL intensity depends on ion species, luminescence activators/quenchers.…”

Crystallisation and microstructure of nepheline–forsterite glass-ceramics

“…All of these favourable technological properties have led to the adoption of forsterite in many important technologies, including substrates for high-frequency electronics, ceramic-metal seals, the iron and steel industry, tunable lasers [10] and even as a bone implant material [11].…”