Method for preparing homogeneous single crystal ternary III-V alloys
A method is described for producing homogeneous, single-crystal III-V ternary alloys of high crystal perfection using a floating crucible system in which the outer crucible holds a ternary alloy of the composition desired to be produced in the crystal and an inner floating crucible having a narrow, melt-passing channel in its bottom wall holds a small quantity of melt of a pseudo-binary liquids composition that would freeze into the desired crystal composition. The alloy of the floating crucible is maintained at a predetermined lower temperature than the alloy of the outer crucible, and a single crystal of the desired homogeneous alloy is pulled out of the floating crucible melt, as melt from the outer crucible flows into a bottom channel of the floating crucible at a rate that corresponds to the rate of growth of the crystal.
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5047112; A
- Application Number:
- PPN: US 7-566930; TRN: 92-014296
- OSTI ID:
- 5379234
- Resource Relation:
- Patent File Date: 14 Aug 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method for preparing homogeneous single crystal ternary III-V alloys
Czochralski growth of gallium indium antimonide alloy crystals
Related Subjects
36 MATERIALS SCIENCE
CASCADE SOLAR CELLS
MATERIALS TESTING
MONOCRYSTALS
CHEMICAL PREPARATION
TERNARY ALLOY SYSTEMS
BINARY ALLOY SYSTEMS
CHEMICAL COMPOSITION
CRYSTAL GROWTH METHODS
GALLIUM ARSENIDES
GALLIUM PHOSPHIDES
INDIUM ARSENIDES
LATTICE PARAMETERS
PHASE STUDIES
RECRYSTALLIZATION
SEMICONDUCTOR MATERIALS
SOLID-STATE PLASMA
SUPERLATTICES
ALLOY SYSTEMS
ARSENIC COMPOUNDS
ARSENIDES
CRYSTALS
DIRECT ENERGY CONVERTERS
EQUIPMENT
GALLIUM COMPOUNDS
INDIUM COMPOUNDS
MATERIALS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PLASMA
PNICTIDES
SOLAR CELLS
SOLAR EQUIPMENT
SYNTHESIS
TESTING
140501* - Solar Energy Conversion- Photovoltaic Conversion
360602 - Other Materials- Structure & Phase Studies
360601 - Other Materials- Preparation & Manufacture