Synthesis of YAG:Ce phosphor via different aluminum sources and precipitation processes

Chiang, Chung-Hao; Tsai, Ming-Shiun; Hsiao, Chia-Jung; Hon, Min–Hsiung

doi:10.1016/j.jallcom.2005.08.041

Cited by 67 publications

(28 citation statements)

References 23 publications

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“…Palmero et al [25] shows that pure YAG was obtained from nitrate precursors by co-precipitation, whereas YAG with metastable YAP phase was produced using chloride precursors. Chiang et al [26] shows that aluminum nitrate is also better than ammonium aluminum sulfate for the preparation of the YAG precursor by co-precipitation method. Marlot et al [27] reported that pure cubic YAG nanopowder was prepared without any intermediate phase by reverse strike method using polyethylene glycol PEG as surfactant.…”

Section: Introductionmentioning

confidence: 99%

“…Li et al [24] reported that YAG powder synthesized by reverse strike precipitation method using AHC as precipitant where they assayed inductively coupled plasma spectrometric (ICPS) technique to adjust the stoichiometry of the metal cations content of the stock solution. In this present work, we report the chemical co-precipitation of YAG and Yb:YAG nanopowder prepared by normal-strike method which was not reported that much compared to that of reverse strike technique [24][25][26][27][28]. Here the complex interactions takes place between the metal cations (Y 3?…”

Section: Introductionmentioning

confidence: 99%

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

Kumar

Senthilselvan

2015

Trans Indian Inst Met

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Rare-earth doped YAG nanopowders are widely used as luminescence material because of its technological importance in opto-electronic applications especially for solid state lasers. In this work, YAG and Yb:YAG were prepared by co-precipitation method. The thermal behavior was investigated by differential thermal analysis and thermo gravimetric analysis. The phase formation, elemental analysis, particle size distribution, optical absorbance, fluorescence behavior and morphology of YAG and Yb:YAG nanopowder were analyzed through powder X-ray diffraction technique, energy dispersive X-ray analysis, dynamic light scattering, UV-Vis, photoluminescence spectroscopy, high resolution scanning electron microscopy, high resolution transmission electron spectroscopy respectively. From the optical study, Yb:YAG gives optical absorption at 975 nm and predominant infrared emission at 1030 nm.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Kumar

Senthilselvan

2015

Trans Indian Inst Met

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“…YAG:Ce powder with \2 lm size and spherical morphology are replaced to improve the luminescent performance [10]. YAG:Ce powders of desired size and morphology can be synthesized by soft chemistry techniques such as combustion synthesis, sol gel method, spray pyrolysis, solvothermal, polyacrylamide gel, heterogeneous and co-precipitation method [11][12][13][14]. Comparing with other techniques, co-precipitation is a relatively simple method, requiring low sintering temperature and mixing at molecular level [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Effect of particle morphology and coating thickness on fluorescent behavior of Ce doped yttrium aluminium garnet phosphor screens

Asghar

Zahid

Ahmad

et al. 2015

J Mater Sci: Mater Electron

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Cerium activated yttrium aluminium garnet (Y 3 Al 5 O 12 ; YAG) powder was synthesized by co-precipitation method using aluminium nitrate, yttrium nitrate and cerium nitrate as starting materials and ammonium carbonate as precipitant. The concentration of cerium (Ce) was varied from 0.02 to 0.1 mol. The precursor of Ce doped YAG was calcined at 1250°C for 1-12 h for achieving different morphology of particles. X-ray diffraction analysis was carried out to confirm the formation of YAG phase. Electrophoretic deposition was used for uniform coating of synthesized YAG:Ce powder on glass substrate. The deposition time was varied from 1 to 9 min for achieving different thickness of coating. Photoluminescence property of coating was investigated as a function of dopant concentration, particle morphology and coating thickness. The excitation wavelength used in this investigation was 430 nm. YAG:Ce showed peak emission at *530 nm. The maximum emission intensity was achieved at Ce content of 0.04 mol in YAG with spherical morphology of particles having 300 nm particle size and 11 lm coating thickness.

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“…Due to different luminescence properties obtained by addition of a small amount of dopant ions such as Eu, Ce, and Tb, phosphor particles are widely applied to optical devices such as cathode ray tubes (CRTs) and field emission displays (FEDs) (2). Cerium-doped Y 3 Al 5 O 12 (YAG:Ce 3+ ) particle as yellow emission phosphor is one of the most important phosphors in solid state lighting fields (3)(4)(5)(6)(7)(8) because it can be applied to generate the white light by mixing of blue light emitting diodes (LEDs). One of important parameters in white LED is the quality of phosphor particles.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of YAG:Ce3+ Nanophosphor prepared by Flame Spray Pyrolysis

et al. 2009

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Among the various types of synthesis techniques for phosphors, flame spray pyrolysis (FSP) is a powerful method which is capable of producing particles with good crystallinity and high luminescence efficiency. In this work, we have studied the possibility of producing yellow light emitting Ce 3+ doped Y 3 Al 5 O 12 (YAG:Ce 3+ ) nanophosphor particles using FSP. The challenges in forming YAG arise because of its complex stoichiometry and existence of numerous crystalline states. 3 M of urea was added to increase the flame temperature. The as-prepared nanoparticles were annealed in the temperature range 800℃ to 1100℃ for 1 hour. As-prepared phosphor particles were found to be YAlO 3 which transformed to YAG when annealed above 900 ℃ . PL intensity of the phosphors increased with increase in annealing temperature. These results indicate the possibility of fabrication of high quality YAG:Ce 3+ nanophosphor particles via a simple process.

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Synthesis of YAG:Ce phosphor via different aluminum sources and precipitation processes

Cited by 67 publications

References 23 publications

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

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

Effect of particle morphology and coating thickness on fluorescent behavior of Ce doped yttrium aluminium garnet phosphor screens

Synthesis and Characterization of YAG:Ce3+ Nanophosphor prepared by Flame Spray Pyrolysis

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