Growth of Nd-doped YAG powder by sol spray process

Durrani, S. K.; Saeed, K.; Qureshi, A. H.; Ahmad, Mushtaq; Arif, Mohammad; Hussain, Nazar; Mohammad, Tauheed

doi:10.1007/s10973-010-1031-2

Cited by 15 publications

(7 citation statements)

References 22 publications

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“…16,17 These processes lead to large particle size and heavy agglomeration. Wet-chemical routes such as coprecipitation, 18,19 sol−gel, 20,21 combustion, 22,23 and spray pyrolysis 24,25 have been proposed to lower the temperature to obtain single phase YAG with fine particle size. However, the aggregation is still inevitable because of the post heat treatment in these methods.…”

Section: Introductionmentioning

confidence: 99%

“…YAG powders are conventionally prepared by solid-state reaction with temperature higher than 1600 °C and repeated mechanical mixing to obtain pure phase YAG powders. , These processes lead to large particle size and heavy agglomeration. Wet-chemical routes such as coprecipitation, , sol–gel, , combustion, , and spray pyrolysis , have been proposed to lower the temperature to obtain single phase YAG with fine particle size. However, the aggregation is still inevitable because of the post heat treatment in these methods.…”

Section: Introductionmentioning

confidence: 99%

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Solvothermal Synthesis and Luminescence Properties of Yttrium Aluminum Garnet Monodispersed Crystallites with Well-Developed Faces

Zhang

Zhu

et al. 2014

J. Phys. Chem. C

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Monodispersed yttrium aluminum garnet (YAG) crystallites with welldeveloped and controllable crystal faces were obtained by the solvothermal method. The effects of temperature, time, and solvents on the phase formation, morphology, and particle size distribution were investigated. YAG can be obtained at relatively lower temperature in water, while higher temperature and longer time are necessary with increasing amount of ethanol in the solvent. The presence of {100} faces is favored at lower temperature while the terminating faces are {110} and {211} at higher temperature in water and water− ethanol mixture (volume ratio = 1:1). Moreover, solvent exhibits a significant influence on the reaction process, luminescence intensity, and decay time of YAG:Ce crystallites. This study presents a novel way to obtain YAG crystallites with well-developed terminating faces which will be promising in the solid-state lighting and will lay a foundation to study the grain boundaries formed in the process of YAG transparent ceramics sintering.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solvothermal Synthesis and Luminescence Properties of Yttrium Aluminum Garnet Monodispersed Crystallites with Well-Developed Faces

Zhang

Zhu

et al. 2014

J. Phys. Chem. C

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“…With the advancement of nanoscience and nanotechnology, transparent ceramic materials have gained much attention among researchers and photonics industry due to their several potential applications. In the fabrication of the transparent ceramics, the primary step is to synthesize the nanoparticle with proper size and shape so that the grains in the final high pressure sintered compact structure are well distributed with less pores, boundaries and other kinds of defects [1][2][3][4][5][6][7][8]. Optical transparency in polycrystalline materials is limited by the amount of light, which is scattered by their micro structural features [2,6].…”

Section: Introductionmentioning

confidence: 99%

Comparative studies of the spectroscopic properties of Nd^3+: YAG nanocrystals, transparent ceramic and single crystal

Pokhrel

Kumar

Sardar

2012

Opt. Mater. Express

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Detailed comparative spectroscopic studies of Nd 3+ doped YAG nanocrystals, transparent ceramic and single crystal have been performed. Although most of the radiative spectral properties of Nd 3+ are almost in good agreement between the three hosts, the non-radiative losses are significantly high in nanocrystals, which are attributed due to the presence of large amount of hydroxyl groups on the nanocrystals surface which deteriorates the quality of the material for laser applications. In addition, wavelength dependent scattering loss for the Nd 3+ doped YAG nanocrystals is found significantly high compared to those of Nd 3+ doped single crystal and ceramic.

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“…Thus a lot of effort has been made to try to synthesize polycrystalline YAG ceramics doped with high amount of Nd 3+ ions. The Nd:YAG powders are usually synthesized by the various wet chemical synthesis methods, including co-precipitation [11], sol-gel combustion [12], sol spray [13], and the gel combustion methods [14]. These processes achieve symmetrical mixing on the molecular level, lowering the crystallization temperature.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of high concentration Nd3+ doped YAG nanopowders for laser applications

Das¹,

Som²,

Yang³

et al. 2016

Proceedings of the 5th International Conference on Mechanical Engineering, Materials and Energy (5th ICMEME2016)

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Herein, neodymium-doped yttrium aluminum garnet (Nd:YAG) ceramic powders were fabricated via a wet chemical reaction method followed by heating in air. The structural studied confirmed the formation of single phase Nd:YAG nanocrystallites without any intermediate phase at 1000 °C, and the average particle size was calculated to be 260 nm. According to the reflectance results, the highest absoption of the synthesized powders was observed at 808 nm. Therefore, A laser diode (808 nm) with power output about 1000 mW was used as a pump source and the emission spectra was recorded. Upon IR excitation, the present sample showed intense emission at around 1064 nm and found to be potential for solid state lasewr devices.

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Growth of Nd-doped YAG powder by sol spray process

Cited by 15 publications

References 22 publications

Solvothermal Synthesis and Luminescence Properties of Yttrium Aluminum Garnet Monodispersed Crystallites with Well-Developed Faces

Solvothermal Synthesis and Luminescence Properties of Yttrium Aluminum Garnet Monodispersed Crystallites with Well-Developed Faces

Comparative studies of the spectroscopic properties of Nd^3+: YAG nanocrystals, transparent ceramic and single crystal

Synthesis and characterization of high concentration Nd3+ doped YAG nanopowders for laser applications

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