Oil/Water Interface Synthesis and Optical Property of Strontium Tungstate Nanorods

Chen, Y.; Wu, Qingsheng; Ding, Yaping

doi:10.1142/s1793292007000477

Cited by 5 publications

(3 citation statements)

References 21 publications

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“…SrWO 4 crystallizes in a tetragonal structure with space group I4 1 /a [43]. Chen et al [44] described the tetragonal SrWO 4 structure constituted of four molecules per unit cell (Z = 4). Jia et al [45] explained the A-sites related to strontium (Sr) atoms present point symmetry (S 4 ).…”

Section: Resultsmentioning

confidence: 99%

Effect of different strontium precursors on the growth process and optical properties of SrWO4 microcrystals

et al. 2015

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In this paper, an experimental study was performed on the effect induced by different strontium precursors in the growth processes and optical properties of strontium tungstate (SrWO 4) microcrystals synthesized by the co-precipitation method. The structural behavior was analyzed by means of X-ray diffractions, Rietveld refinements, Fourier transform (FT)-Raman, and FT-infrared spectroscopies. X-ray absorption near-edge structure spectra performed at the W-L 1 and L 3 edges revealed the first coordination shell around the tungsten atoms is composed of four oxygens, i.e., existence of tetrahedral [WO 4 ] clusters inside the SrWO 4 structure. Field emission scanning electron microscopy (FE-SEM) images showed the presence of pitch and longleaf pine cone-like SrWO 4 microcrystals for most of the strontium precursors employed in the synthesis. Based on these FE-SEM images, a hypothetical crystal growth mechanism was proposed to explain the origin of these microcrystals. The optical properties were investigated by ultraviolet-visible spectroscopy and photoluminescence (PL) measurements at room temperature. The different optical band gap values found for this material, depending on the type of strontium precursor, were correlated with the existence of intermediary energy levels within the forbidden region. Finally, PL profiles were associated to the degree of distortions in tetrahedral [WO 4 ] clusters.

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Section: Resultsmentioning

confidence: 99%

Effect of different strontium precursors on the growth process and optical properties of SrWO4 microcrystals

et al. 2015

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“…The methods to fabricate strontium tungstate particles can be generally categorized into two types: one is a liquid-solution routine [11][12][13][14][15][16][17][18][19][20][21][22], the other is a molten flux process [23]. With the control of preparation conditions, the morphology of strontium tungstate particles is easy to be fabricated into peach-like, dump-like, bundle, rice grain-like, peanut-like, and rod-like particles ( Figure 3).…”

Section: Particlementioning

confidence: 99%

“…The luminescence of strontium tungstate has attracted extensive attentions in the past several decades [16,17,21,28,29,. It is generally assumed that the emission and excitation spectra of neat SrWO 4 are associated with the charge transfer within the WO 4 2-group [60].…”

Section: Neat Strontium Tungstatementioning

confidence: 99%

Recent advances in strontium tungstate scheelite material

Wang

Jia

2009

Front. Chem. China

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Strontium tungstate is a well-known stimulated Raman scattering laser material. The unique structure of this crystal allows the usage of these crystals as matrices for laser active elements with nonlinear self-conversion of radiation to a new spectral range. The recent advances in crystal growth, particle and thin film fabrication, spectroscopy, and laser properties were reviewed. The demonstration of laser output of neat and Nd 3+ -doped SrWO 4 crystal shows that it is an efficient self-stimulated Raman scattering laser.

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Biomimetic and Bioinspired Synthesis of Nanomaterials/Nanostructures

2016

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In recent years, due to its unparalleled advantages, the biomimetic and bioinspired synthesis of nanomaterials/nanostructures has drawn increasing interest and attention. Generally, biomimetic synthesis can be conducted either by mimicking the functions of natural materials/structures or by mimicking the biological processes that organisms employ to produce substances or materials. Biomimetic synthesis is therefore divided here into "functional biomimetic synthesis" and "process biomimetic synthesis". Process biomimetic synthesis is the focus of this review. First, the above two terms are defined and their relationship is discussed. Next different levels of biological processes that can be used for process biomimetic synthesis are compiled. Then the current progress of process biomimetic synthesis is systematically summarized and reviewed from the following five perspectives: i) elementary biomimetic system via biomass templates, ii) high-level biomimetic system via soft/hard-combined films, iii) intelligent biomimetic systems via liquid membranes, iv) living-organism biomimetic systems, and v) macromolecular bioinspired systems. Moreover, for these five biomimetic systems, the synthesis procedures, basic principles, and relationships are discussed, and the challenges that are encountered and directions for further development are considered.

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Oil/Water Interface Synthesis and Optical Property of Strontium Tungstate Nanorods

Cited by 5 publications

References 21 publications

Effect of different strontium precursors on the growth process and optical properties of SrWO4 microcrystals

Effect of different strontium precursors on the growth process and optical properties of SrWO4 microcrystals

Recent advances in strontium tungstate scheelite material

Biomimetic and Bioinspired Synthesis of Nanomaterials/Nanostructures

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