Zone refining high-purity germanium
Hubbard, G. S.
Haller, E. E.
Hansen, W. L.
Lawrence Berkeley Laboratory
1977-10-01
English
The effects of various parameters on germanium purification by zone refining have been examined. These parameters include the germanium container and container coatings, ambient gas and other operating conditions. Four methods of refining are presented which reproducibly yield 3.5 kg germanium ingots from which high purity (vertical barN/sub A/ - N/sub D/vertical bar less than or equal to2 x 10/sup 10/ cm/sup -3/) single crystals can be grown. A qualitative model involving binary and ternary complexes of Si, O, B, and Al is shown to account for the behavior of impurities at these low concentrations.
Quartz
Processing
Elements
Impurities
Crystal Growth
Oxides
Polycrystals
Carbon
Chalcogenides
Separation Processes
Graphite
Refining
Monocrystals
Metals
Germanium
Crystals
Silicon Compounds
Oxygen Compounds
36 Materials Science
Zone Refining
Nonmetals
Silicon Oxides 360101* -- Metals & Alloys-- Preparation & Fabrication
Containers
Nuclear science symposium, San Francisco, CA, USA, 19 Oct 1977
Article
11 pages
Text
rep-no: LBL-6441
rep-no: CONF-771023-30
grantno: W-7405-ENG-48
osti: 5212375
https://digital.library.unt.edu/ark:/67531/metadc1060983/
ark: ark:/67531/metadc1060983