Gallium arsenide thin films on tungsten/graphite substrates. Phase II. Quarterly project report, March 1, 1978-May 31, 1978

Technical Report · Thu Jun 01 04:00:00 EDT 1978

OSTI ID:6055597

Chu, S S

Efforts during this quarter have been directed to (1) the effects of the nature of substrate on the initial stage of the deposition process, (2) the effects of the addition of hydrogen chloride to the reactant mixture, (3) the fabrication and characterization of thin film gallium arsenide solar cells on tungsten/graphite substrates with both gold and silver as barrier metals, and (4) the investigation of the temperature coefficients and stabilities of thin film gallium arsenide MOS solar cells. The use of the reaction between gallium, hydrogen chloride, and arsine in a hydrogen flow has been continued for the deposition of gallium arsenide. The initial stage of the deposition of gallium arsenide on graphite and carbon/graphite substrates and the effects of the addition of hydrogen chloride to the reactant mixture on the deposition of gallium arsenide on tungsten/graphite substrates have been investigated by scanning electron microscopy.

• Research Organization: Southern Methodist Univ., Dallas, TX (USA)
• DOE Contract Number: AC03-76SF01284
• OSTI ID: 6055597
• Report Number(s): DOE/SF/01284-T8; ON: DE81027709
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ARSENIC COMPOUNDS
ARSENIDES
CARBON
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
CRYSTAL STRUCTURE
DEPOSITION
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
ELEMENTS
EQUIPMENT
FABRICATION
FILMS
GALLIUM ARSENIDE SOLAR CELLS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GOLD
GRAPHITE
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
MICROSCOPY
MICROSTRUCTURE
MOS SOLAR CELLS
NONMETALS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PNICTIDES
REFRACTORY METALS
SCANNING ELECTRON MICROSCOPY
SILVER
SOLAR CELLS
SOLAR EQUIPMENT
STABILITY
SUBSTRATES
SURFACE COATING
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
TUNGSTEN