Structural, morphological and optical investigations on BaMgAl10O17:Eu2+ elaborated by a microwave induced solution combustion synthesis

High dispersibility and enhanced luminescence properties of BaMgAl10O17:Eu2+ phosphors derived from molten salt synthesis

“…The intensity of phosphors with 10 wt% LiF is about 200% higher than that of phosphors without the molten salt and LiF, and about 85% higher than that of phosphors with only the molten salt. It is well known that phosphor particles with higher crystallinity and dispersibility have higher luminous efficiency [3]. A reasonable explanation for this is that the stronger emission intensity is due to the morphology characteristics as shown later in Fig.…”

“…It is well known that the luminescence intensity is affected by the phase purity and crystallinity of the phosphor [3]. Therefore, in an attempt to enhance the crystallinity of BAM during heat treatment, LiF flux was added [9].…”

“…It is widely used in fluorescent lamps, light-emitting diodes (LED), plasma display panels (PDP), etc. [1][2][3][4]. These displays require phosphors with grain sizes in the range of 1-10 lm [5][6].…”

Luminescence centers and spectrum characteristics of a novel Eu2+‐activated hexa‐aluminate CaZrBAl9O18

“…Many important phosphors used for lamps and plasma display are based on aluminate compounds, for example, Y 3 Al 5 O 12 :Ce 3+ (YAG:Ce) with garnet structure has been the most popular phosphor used for white‐light LEDs due to its strong absorption in blue wavelength region and the stabile chemical and physical properties . Nowadays, BaMgAl 10 O 17 :Eu 2+ (BAM:Eu 2+ ) are used as blue‐emitting components in commercially available PDPs. Eu 2+ ‐doped alkaline‐earth aluminates M Al 2 O 4 :Eu 2+ ( M = Ca, Ba, Sr) have attracted great interest due to their high efficiency in long‐afterglow phosphorescence and the potential applications including emergency signs, textile fibers, display devices, and optical memory units .…”

Morphology and luminescent properties of BaMgAl10O17:Eu2+ phosphor synthesized by a hydrothermal homogeneous precipitation method

“…Moreover, this method also has some disadvantages, such as inhomogeneous mixing, contamination by impurities, and is energy consuming [5]. Some alternative preparation techniques have also been developed, such as combustion synthesis [6][7][8][9], sol-gel process [10][11][12], hydrothermal reaction [13], coprecipitation [14][15][16][17], and spray pyrolysis [18,19], etc. However, these methods mostly need exacting reaction conditions or special reaction devices.…”