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Inorganic Chemistry

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2009

Hydrothermal

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Full-Text Articles in Chemistry

Synthesis Of Complex Fluorides For Optical Applications, Seth Stepleton Aug 2009

Synthesis Of Complex Fluorides For Optical Applications, Seth Stepleton

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Large single crystals of alkali metal fluorides are desirable for many reasons. Fluoride laser crystals have a wide transmission range and on account of their low phonon energies, many efficient laser emissions have been obtained from 285 nm to 4.34 µm.1,2 Inorganic fluoride single crystals feature large bandgaps, very wide optical transmittance ranges from vacuum-ultraviolet (VUV) to mid-IR wavelength regions, lower refractive indices than those of oxides, and typically lower phonon energies (which drastically reduce multiphonon relaxation rates of rare earth ions).3
The main goal of this work was to investigate the hydrothermal synthesis of alkali metal fluorides. Melt techniques …


Hydrothermal Crystal Growth Of Tetravalent And Pentavalent Metal Oxides, James Mann Aug 2009

Hydrothermal Crystal Growth Of Tetravalent And Pentavalent Metal Oxides, James Mann

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Over the past two hundred years synthetic growth of crystals has become vital to the technological advancement of our society. A variety of crystal growth techniques have been developed during this time, with each having its own nuances. These differences have enabled the growth of a wide spectrum of crystalline materials that can be used for many applications which include solid state lasers, semiconductors, and communication devices. Despite these techniques there are entire classes of materials which have thus far proved quite difficult to prepare as single crystals. In particular, crystal growth of the tetravalent and pentavalent metal oxides has …