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Showing 1 to 10 of 10 for “"Germanate"”.
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Photon correlation spectroscopy study of slow relaxation in alkali germanate and phosphate germanate glass melts
… aluminophosphate, sodium borate, and sodium germanate glass melts. These studies revealed a compelling and consistent picture: the fragility of a network-forming glass melt is governed primarilyby the average bridging oxygen bond density of the oxide network, which in turn is controlled by …
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Modeling the linkages between heat transfer and microdefect formation in crystal growth : examples of Czochralski growth of silicon and vertical Bridgman growth of bismuth germanate
Microdefect formation in crystalline material is strongly correlated to the processing conditions for growth of crystals important in microelectronic processing. The geometry and operation conditions for crystal growth systems affect the temperature profile in the crystal and melt, which influences …
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Beiträge zur Chemie des höherkoordinierten Siliciums und Germaniums : Synthese, Struktur und Eigenschaften dianionischer lambda-6-Si-Silicate und lambda-6-Ge-Germanate sowie neutraler penta- und hexakoordinierter Silicium-Verbindungen
Im Rahmen der vorliegenden Arbeit wurden Beiträge zur Chemie des höherkoordinierten Siliciums und Germaniums geleistet. Neben der Synthese zwitterionischer lambda-5-Si-Silicate sowie hexakoordinierter Silicium- und Germanium-Verbindungen mit SiO6- oder GeO6-Gerüst stellt die Synthese neutraler …
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Development of "Core-Suction" Technique for Fabrication of Highly Doped Fibers for Optical Amplification and Characterization of Optical Fibers for Raman Amplification
… core glasses such as Schott SF6, Lead-Tellurium-Germanate, Lead-Tellurium-Germanate- Neodymium -Erbium and MM2 in silica cladding tubes and then pulled into fibers. The fabricated fibers were measured for refractive index profile, loss spectrum and spontaneous Raman spectra. Elemental analysis of …
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Coherent lattice and molecular dynamics in ultrafast single-shot spectroscopy
… (ISRS) measurements in m-iodoanisole and bismuth germanate reveal the existence of transient coherent behavior. High-field resonant excitation of the semimetals bismuth, antimony and tellurium, as well as the semiconductor germanium telluride, reveals dramatic lattice anharmoniticity as a function …
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Electrooptic electric field sensor for dc and extra-low-frequency measurement
… in DC field measurements. Crystals of Bismuth Germanate and Lithium Niobate were identified as suitable materials for the DC field sensor. The selected crystals were found suitable at extra-low-frequencies. DC field measurements, without the rotation of the crystal, were possible only with …
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Spectroscopic characterisation of high dielectric constant materials on semiconducting surfaces
… of the GeON/Ge system is presented. Hafnium germanate has shown promise on silicon and here it has been analysed, with XPS and UPS on germanium substrates with 3 interfacial layers previously reported in the literature.
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Enhancing PEPT: high fidelity analysis techniques with augmented detection systems
… To address these issues, a modular bismuth germanate oxide (BGO) scintillator array, consisting of 1024 detector elements (512 pixels of 6.75 x 6.25 x 30 mm3 and 512 pixels of 4.1 x 4.0 x 30 mm3), has been developed and characterised for use in a hybrid system, combining semiconductor and …
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Enhancing PEPT: high fidelity analysis techniques with augmented detection systems
… To address these issues, a modular bismuth germanate oxide (BGO) scintillator array, consisting of 1024 detector elements (512 pixels of 6.75 x 6.25 x 30 mm3 and 512 pixels of 4.1 x 4.0 x 30 mm3), has been developed and characterised for use in a hybrid system, combining semiconductor and …
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Nanowire-Based Alternating Current Oxide Powder Electroluminescent Materials and Devices
… this goal, manganese ion (Mn2+)-doped zinc germanate (Zn2GeO4:Mn) oxide phosphor was synthesized and used as EL powder material for the fabrication of the new types of AC powder EL devices. The Zn2GeO4:Mn oxide phosphor powder could eliminate the well-known degradation problem of zinc …