Search for dissertations about: "SAPPHIRE"
Showing result 1 - 5 of 65 swedish dissertations containing the word SAPPHIRE.
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1. Molecular beam epitaxy growth and characterization of GaN, AlN and AlGaN/GaN heterostructures
Abstract : The III-nitride materials, consisting of Al, Ga, In and N, have several physical properties that make them attractive for semiconductor devices in electronic and optic applications. A wide range of direct energy bandgaps (0.7 eV - 6.1 eV) can be obtained. READ MORE
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2. YBa2Cu3O7-δ Biepitaxial and Step Edge Josephson Junctions on MgO Substrates. SQUID Amplifier
Abstract : This thesis concerns the preparation of Josephson junctions and their applications in Superconducting Quantum Interference Devices (SQUIDs). High temperature superconductors were used for operation at 77 K, the boiling temperature of liquid nitrogen. READ MORE
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3. GaN/AlN Multiple Quantum Well Structures
Abstract : The III-nitride semiconductors: InN, GaN and AlN are promising for photonic, high power and high temperature electronic devices. Their large and direct band gaps cover the range 0.7 to 6.2 eV, i. READ MORE
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4. Continuous Fibre Reinforced Oxide/Oxide Composites
Abstract : The appealing properties of ceramics include retention of strength and hardness at high temperatures, chemical inertness and low density. However, monolithic ceramics fail in a brittle, unpredictable manner making them unsuitable for many applications where reliability is a key requirement. READ MORE
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5. Thin films and optical detectors made of YBa2Cu3O7-x
Abstract : .... READ MORE