Preparation of YAG:Nd nano-sized powder by co-precipitation method

Preparation of YAG:Ce spheroidal phase-pure particles by solvo-thermal method and their photoluminescence

“…Yttrium aluminum garnet (Y 3 Al 5 O 12 , YAG) doped with a small amount of impurities such as Eu, Cr and Tb is now widely used as optical host materials for its good optical properties in cathode-ray tubes (CRTs), field emission displays (FED), and scintillation and electro-luminescent applications [1][2][3][4][5]. Recently, polycrystalline fluorescence material has received much attention since the quality of YAG:Ce phosphor has been improved greatly [6,7].…”

“…However, it requires a high temperature more than 1100 • C for eliminating several byproducts such as Y 4 Al 2 O 9 (monoclinic yttrium aluminate, YAM) and YAlO 3 (yttrium aluminum perovskite, YAP) [8,9]. YAG can directly crystallize from the amorphous precursor at the lower temperature of 900 • C when co-precipitation method is used [4][5][6]. Potdevin et al [10] have reported the sol-gel method for synthesizing of YAG particles at low temperature of 900 • C. Kasuya et al [11] synthesized YAG powders below 400 • C by the glycothermal method using alkoxides as the starting materials.…”

Co-precipitation Synthesis and Spectroscopic Studies of YAG and Yb:YAG Nanopowder for Opto-Electronic Applications

“…Moreover the rare earth doped YAG have been widely used in the field of luminescence because of its stability under irradiation of high energy or with an electromagnetic radiation and also to improve the quantum efficiency [4]. Compared with all solid state lasers, Nd:YAG is one of the most widely used laser media in scientific and industrial application because of its fast non-radiative process with longer life time and emits light in the wavelength of 1064 nm [5,6]. With the advent of Yb:YAG diode-pumped laser [7,8] in recent years compact solid state lasers became attractive for broad absorption at suitable wavelength with improved efficiency and low fractional heating [9].…”

Solvothermal synthesis of spherical YAG powders via different precipitants

“…It generally introduces impurities. Other wet-chemical methods of producing YAG powders such as precipitation [13][14][15][16], the sol-gel method [17,18] and spray pyrolysis [19,20] have been developed in recent years. Although homogeneous products can be obtained using these methods, they require additional heat-treatment at higher temperatures (>1000 • C) to obtain well-crystallized products.…”