Dy:Eu doped CaBAl glasses for white light applications

Enhanced and tunable white light emission from Ag nanoclusters and Eu3+-co-doped CaBAl glasses

“…A detailed synthesis description is found in previous works. 4,7 The nominal glass compositions were (25…”

“…[1][2][3] Therefore, smart white light has been studied, with the aim of developing highly efficient devices and a color balance control, in order to reproduce the variations of daylight spectral distribution. [4][5][6] Due to the advantages of high brightness, long lifetime and low power consumption, white light (WL) LEDs have oen been used to replace conventional lighting sources. These devices are based on a phosphorus element excited by an UV LED chip, and are considered the new generation of solid-state lighting devices.…”

“…As an alternative, rare earth metal (RE) doped glass phosphors have attracted large amounts of attention, due to their chemical and thermal stability, luminescent performance, low cost and easier large scale production, compared to crystalline systems. [4][5][6][7][8][9][10] Many investigations have focused on the co-doping of noble metals in glass systems in order to improve the RE luminescence properties. Preliminary works in this eld focus on the combination of RE elements with these transition metals.…”

“…CaBAl glass stands out due to its excellent optical and chemical properties, such as high optical transparency, low melting temperature, high thermal stability, high chemical durability and high rare earth solubility. 4,7,22 Moreover, the incorporation of CaF 2 in the composition leads to a phonon energy decrease in these glasses, which can improve their quantum efficiency. 4,23 In this work, Ag:Eu-co-doped CaBAl glasses were prepared.…”

“…4,7,22 Moreover, the incorporation of CaF 2 in the composition leads to a phonon energy decrease in these glasses, which can improve their quantum efficiency. 4,23 In this work, Ag:Eu-co-doped CaBAl glasses were prepared. In order to induce the different Ag species, samples were heat treated at 550 and 575 C for different lengths of time.…”