Formation of α- and β-phase Mn-doped zinc silicate in supercritical water and its luminescence properties at Si/(Zn+Mn) ratios from 0.25 to 1.25

Takesue, Masafumi; Suino, Atsuko; Shimoyama, K.; Hakuta, Yukiya; Hayashi, Hiromichi; Smith, Richard L.

doi:10.1016/j.jcrysgro.2008.06.068

Cited by 26 publications

(12 citation statements)

References 32 publications

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“…8. Images of typical zinc silicate: a) natural willemite found in La Calamine [8]; b) commercial Zn 2 SiO 4 :Mn 2þ phosphor produced by a solid-state reaction; c) Zn 2 SiO 4 :Mn 2þ spheres synthesized by a solegel method [88]; d) Zn 2 SiO 4 :Mn 2þ microwires synthesized by a solegel method [96]; e) Zn 2 SiO 4 :Mn 2þ spheres synthesized by a solegel method [50]; fei) Zn 2 SiO 4 :Mn 2þ particles synthesized by solvothermal methods at different experimental conditions [98]; j) Zn 2 SiO 4 :Mn 2þ rods synthesized by a supercritical water method [46]; k) Zn 2 SiO 4 :Mn 2þ nanowire bundles synthesized by a vapor method [83]; l) Zn 2 SiO 4 :Mn 2þ spheres synthesized by a vapor method [51]. [106,108].…”

Section: Solegel Methodsmentioning

confidence: 99%

Thermal and chemical methods for producing zinc silicate (willemite): A review

Takesue

Hayashi

Smith

2009

Progress in Crystal Growth and Characterization of Materials

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182

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Section: Solegel Methodsmentioning

confidence: 99%

Thermal and chemical methods for producing zinc silicate (willemite): A review

Takesue

Hayashi

Smith

2009

Progress in Crystal Growth and Characterization of Materials

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182

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“…Hydrothermal methods for preparing fine metal oxide particles in subcritical and supercritical water have been developed using batch reaction [4,5,6,7,8,9,10,11,12,13,14,15,16,32,33,34,35,36,37,38,39,40,41,42] and flow reaction systems [17,18,19,20,21,22,23,24,25,26,27,28,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of Metal Oxide Nanoparticles in Supercritical Water

2010

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This paper summarizes specific features of supercritical hydrothermal synthesis of metal oxide particles. Supercritical water allows control of the crystal phase, morphology, and particle size since the solvent's properties, such as density of water, can be varied with temperature and pressure, both of which can affect the supersaturation and nucleation. In this review, we describe the advantages of fine particle formation using supercritical water and describe which future tasks need to be solved.

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“…Therefore, the origin of the PL peak of the CuGeO 3 nanowires is very different from the above nanowires. The PL peak of the CuGeO 3 nanowires at 535.4 nm is very close to those of the Mn-doped zinc silicate (Zn 2 SiO 4 ) nanorods, nanocrystallines and exhibiting green light emission at about 525 nm and 527 nm, respectively, with a band width from 450 to 650 nm which are contributed from Mn impurities [44,45]. The pure single crystalline CuGeO 3 nanowires are different from the doped nanomaterials.…”

Section: +mentioning

confidence: 70%

Preparation of copper germanate nanowires with good electrochemical sensing properties

Wang

Yang

et al. 2010

Cryst. Res. Technol.

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Ternary copper germanate nanowires have been synthesized by the hydrothermal deposition route in an autoclave using germanium dioxide and copper oxide powders as the starting materials as well as the copper germanate nanowires have been investigated for cysteine sensing characteristics. The nanowires with the length of several dozens of micrometers are mainly composed of single crystalline orthorhombic CuGeO3, which are supported by X‐ray diffraction, selected area electron diffraction, high‐resolution transmission electron microscopy and X‐ray photoelectron spectrum. Room temperature photoluminescence spectrum exhibits strong green light emission ability at 535.4 nm with a broad emission band. The copper germanate nanowires may be controlled grown by controlling the growth conditions of the nanowires. The nanowire growth process is explained using a solid state growth mechanism. The electrochemical analysis demonstrates that the copper germanate nanowires serve as a good electrochemical sensor with excellent electrochemical sensing ability for cysteine and catalytic ability for electron‐transfer process. The electrochemical result of the copper germanate nanowires presents an important advance toward the application for electrochemical sensors operating at room temperature. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Formation of α- and β-phase Mn-doped zinc silicate in supercritical water and its luminescence properties at Si/(Zn+Mn) ratios from 0.25 to 1.25

Cited by 26 publications

References 32 publications

Thermal and chemical methods for producing zinc silicate (willemite): A review

Thermal and chemical methods for producing zinc silicate (willemite): A review

Hydrothermal Synthesis of Metal Oxide Nanoparticles in Supercritical Water

Preparation of copper germanate nanowires with good electrochemical sensing properties

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