Amorphous germanium as an electron or hole blocking contact on high-purity germanium detectors
Conference
·
OSTI ID:7330740
Experiments were performed in an attempt to make thin n/sup +/ contacts on high-purity germanium by the solid phase/sup 1)/ epitaxial regrowth of arsenic doped amorphous germanium. After cleaning the crystal surface with argon sputtering and trying many combinations of layers, it was not found possible to induce recrystallization below 400/sup 0/C. However, it was found that simple thermally evaporated amorphous Ge made fairly good electron or hole blocking contacts. Excellent spectrometers have been made with amorphous Ge replacing the n/sup +/ contact. As presently produced, the amorphous Ge contact diodes show a large variation in high-voltage leakage current.
- Research Organization:
- California Univ., Berkeley (USA). Lawrence Berkeley Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 7330740
- Report Number(s):
- LBL-5564; CONF-761006-33
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360401* -- Polymers & Plastics-- Preparation & Fabrication-- (-1987)
440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMORPHOUS STATE
CRYSTALLIZATION
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EPITAXY
EQUIPMENT
EVAPORATION
FERMIONS
GE SEMICONDUCTOR DETECTORS
GERMANIUM
HIGH-PURITY GE DETECTORS
HOLES
LEPTONS
MEASURING INSTRUMENTS
METALS
N-TYPE CONDUCTORS
PHASE TRANSFORMATIONS
RADIATION DETECTORS
SEMICONDUCTOR DETECTORS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR MATERIALS
SOLIDS
SURFACES
360401* -- Polymers & Plastics-- Preparation & Fabrication-- (-1987)
440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMORPHOUS STATE
CRYSTALLIZATION
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EPITAXY
EQUIPMENT
EVAPORATION
FERMIONS
GE SEMICONDUCTOR DETECTORS
GERMANIUM
HIGH-PURITY GE DETECTORS
HOLES
LEPTONS
MEASURING INSTRUMENTS
METALS
N-TYPE CONDUCTORS
PHASE TRANSFORMATIONS
RADIATION DETECTORS
SEMICONDUCTOR DETECTORS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR MATERIALS
SOLIDS
SURFACES