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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Photovoltaic barriers formed by depositing a layer of polycrystalline cuprous sulfide or cuprous selenide on gallium arsenide are chemically and electrically stable. The stability of these barrier materials is significantly greater than that of cuprous iodide.
Epitaxial gallium arsenide diode junction formed in a crossed waveguide structure operates as a variable reactance harmonic generator. This varactor diode can generate power efficiently in the low-millimeter wavelength.
Thin film gallium arsenide photovoltaic solar cells
Development of gallium arsenide laser diode with silicon phototransistor for optical isolation switch
Chemical vapor deposition of aluminum phosphides onto single crystals of silicon and gallium arsenide for producing high temperature operating solid state electronic devices
Gallium arsenide laser modulator, attenuation coefficients, and semiconductors for optical communication systems
Space radiation effects on gallium arsenide laser diodes and optically pumped lasers
Gallium arsenide n-p-n transistors using different crystal materials and fabrication technologies
Developing evaporated gallium arsenide to determine electrical and structural transport properties for coplanar electrode, space charge limited triodes
Feasibility of operating gallium arsenide devices in high temperature microelectronic circuits
Semiconductor heterojunctions of zinc selenides, gallium arsenides, and germanium
Chemical vapor deposition of epitaxial gallium arsenide
Ion implantation techniques for p-n junction diodes of silicon carbide and gallium arsenide
Microwave amplification in high resistivity gallium arsenides
The Laser Tracking and Ranging System (LTRS) is an optical tracking radar that uses a gallium-arsenide injection laser as the transmitting source. The system is designed to track a small retrodirective corner-reflector array and to provide continuously the range, azimuth, and elevation of the array's position relative to the tracking unit. The development effort was directed toward providing a small, compact and relatively lightweight instrument mainly as a part of the Lunar Surveying System for tracking an astronaut's staff. A number of other applications considered include the LTRS as a navigation instrument for a Lunar Flying Vehicle and as a crew safety device for monitoring an astronaut's situation during any EVA operations.
Ion implantation forming of conducting layers and p-n junctions in gallium arsenide and silicon carbide
Describing method for vapor deposition of gallium arsenide films to manganese substrates to provide semiconductor devices with low resistance substrates
Acoustic field effects on gallium arsenide, silicon solar cells, and photoresistive devices with and without light exposure