Fast combustion synthesis and characterization of YAG:Ce³⁺ garnet nanopowders

Abstract

Cerium-doped yttrium aluminum garnet can be used in white light emitting diodes and lasers. The YAG powders are traditionally formed by the solid state method, but the product particles are large, irregular, and non-homogeneous, which is detrimental for its luminescence properties. We present here a simple and fast method for synthesizing YAG:Ce 3þ nanopowder based on solution combustion synthesis from metal nitrates (Ce content between 0.7 and 35 wt%) and fuel (urea, starch, or glucose) water mixtures. The calcination of the raw product at 900 8C for 2 h yielded crystalline garnet nanopowder with grain size well below 100 nm. The properties of the final product were characterized by XRD, SEM, ATR, TG/DTA, and spectrofluorimetric measurements.

Nanomaterials via solution combustion synthesis: a step nearer to controllability

“…5 When 4 ¼ 1, the combustion is intense and complete, which releases lots of heat. [47][48][49][50] For example, Huczko et al synthesized cerium-doped yttrium aluminum garnet by SCS. Trace impurities, such as carbon and carbonates, would remain in the product, especially under a fuel-rich condition.…”

“…4 > 1 or 4 < 1 means one of the reactants is excess in the combustion system. 47 Recently, SCS is also applied to synthesize thin lms of metal oxides. The phase of products is also determined by the fuel/oxidizer ratio, because the fuel and metal nitrate acts as reducer and oxidizer, respectively.…”

“…[43][44][45][46] Complicated Garnets are also widely synthesized by SCS. [47][48][49][50] For example, Huczko et al synthesized cerium-doped yttrium aluminum garnet by SCS. 47 Recently, SCS is also applied to synthesize thin lms of metal oxides.…”

“…[47][48][49][50] For example, Huczko et al synthesized cerium-doped yttrium aluminum garnet by SCS. 47 Recently, SCS is also applied to synthesize thin lms of metal oxides. [51][52][53][54][55] Fabrications of low-cost and highperformance electronics at low temperatures are thus possible with the help of SCS.…”

Template-free Synthesis and Characterization of Spherical Y3Al5O12:Ce3+(YAG:Ce) Nanoparticles

“…[8][9][10][11] There are two primary approaches to the synthesis of nano-sized YAG phosphors. The first approach is a top-down method where bulk YAG synthesized by the conventional solid-state diffusion reaction technique is pulverized into nano-sized particles using ball-mill equipment.…”