Investigations on the MBE (molecular beam epitaxy) growth and properties of Al/sub y/Ga/sub y/In/sub 1-x-y/As/InP and InGaAs-InAlAs superlattices: Progress report for the period May 15, 1986-January 31, 1987

Technical Report · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6882947

Bhattacharya, P K; Gibala, R

Focus of the work has been to grow wide-bandgap ternary and quaternary semiconductors InAlAs and InGaAlAs by molecular beam epitaxy and to investigate their electronic, optical and structural characteristics. The techniques being used are x-ray, TEM, photoluminescence and absorption, DLTS, Hall transport, impact ionization and pulsed velocity field measurements. The experiments have included both lattice matched and strained layers. It is apparent that the lattice match In/sub 0.52/Al/sub 0.48/As/InP alloys are clustered and dominant D-X trap centers are present in the strained compositions. We are investigating a novel MBE growth technique of growing these alloys directly on GaAs (with a 1 to 4% lattice mismatch) without propagating dislocations. These heteroepitaxial layers and interfaces are being studied by TEM.

• Research Organization: Michigan Univ., Ann Arbor (USA)
• DOE Contract Number: FG02-86ER45250
• OSTI ID: 6882947
• Report Number(s): DOE/ER/45250-1; ON: DE87005190
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
360603* -- Materials-- Properties
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
BEAMS
COHERENT SCATTERING
DIFFRACTION
ELECTRON MICROSCOPY
ELECTRON MOBILITY
ELECTRONS
ELEMENTARY PARTICLES
ENERGY LEVELS
EPITAXY
FERMIONS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HALL EFFECT
INDIUM ARSENIDES
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
IONIZATION
LEPTONS
LUMINESCENCE
MICROSCOPY
MOBILITY
MOLECULAR BEAMS
PARTICLE MOBILITY
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHOTOLUMINESCENCE
PHYSICAL PROPERTIES
PNICTIDES
RESEARCH PROGRAMS
SCATTERING
SUPERLATTICES
TRANSMISSION ELECTRON MICROSCOPY
TRAPS
X-RAY DIFFRACTION