Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"yttrium oxide"”.
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Synthesis of Nanometer-sized Yttrium Oxide Particles in Diisooctyl Sodium Sulphosuccinate/Isooctane Reverse Micelle Solution
This thesis describes the synthesis of yttrium oxide nanoparticles in an AOT/isooctane reverse micelle solution. Two synthetic methods are compared. First is the precipitation reaction between yttrium nitrate and ammonia, second is the hydrolysis of yttrium isopropoxide. The effects of annealing of …
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Precipitation techniques and characterisation of rare earth element doped phosphor materials
… annealed to form their respective luminescent oxides using electron microscopy and light measuring techniques. The first set of experiments presented describes the development of a range of spherical submicron europium-doped yttrium oxide phosphor particles and their optimisation for use in the …
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Metal Oxide Nanoparticles: Optical Properties and Interaction with Chemical Warfare Agent Simulants
… Inert gas-phase condensation synthesis of metal oxide nanoparticles was used to develop materials to explore the optical and chemical properties of metal oxide nanoparticles. One potential application for nanomaterials is use in optical applications. The possibility of interparticle energy …
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Fluorescent Materials and Thin Film Coatings for Temperature Sensing Applications
… typically composed of rare-earth-doped oxide ceramics, exhibit temperature-dependent luminescent properties that enable remote and accurate temperature sensing. When excited by a light source, the emitted light from these materials can be analyzed through either emission intensity ratios …
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Studies of Used Fuel Fluorination and U Extraction Based on Molten Salt Technology for Advanced Molten Salt Fuel Fabrication
… zircaloy would be contaminated with UNF oxides, and the oxides will not oxidize as part of the electrochemical process, they would be left at the anode as the Zr is dissolved away. This means the deposited Zr, on the cathode, can be disposed of as low-level waste (LLW) or recycled back …
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An investigation of the performance and stability of zinc oxide thin-film transistors and the role of high-k dielectrics.
Transparent oxide semiconducting films have continued to receive considerable attention, from a fundamental and application-based point of view, primarily because of their useful fundamental properties. Of particular interest is zinc oxide (ZnO), an n-type semiconductor that exhibits excellent …
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Efficient light emission from bismuth-doped rare earths compounds for Si microphotonics
… Its introduction in two different Si-compatible yttrium based hosts, the yttrium disilicate and the yttrium oxide, will be discussed. These matrices are indeed suitable for the introduction of dopant elements in the Y3+ substitutional position. In particular, the influence of different annealing …
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Monte Carlo Analysis and Physics Characterization of a Novel Nanoparticle Detector for Medical and Micro-dosimetry Applications
… of the energy dependence for the yttrium-oxide based scintillator material was performed in the range of 40-320 kV (2 mm Al filtration), and the maximum device sensitivity was achieved at 100 kV. Tissue maximum ratio data measurements were carried out on a small animal x-ray …