Yttrium contacts for germanium semiconductor radiation detectors
Patent
·
OSTI ID:1532095
A germanium semiconductor radiation detector contact made of yttrium metal. A thin (˜1000 Å) deposited layer of yttrium metal forms a thin hole-barrier and/or electron-barrier contact on both p- and n-type germanium semiconductor radiation detectors. Yttrium contacts provide a sufficiently high hole barrier to prevent measurable contact leakage current below ˜120 K. The yttrium contacts can be conveniently segmented into multiple electrically independent electrodes having inter-electrode resistances greater than 10 GΩ. Germanium semiconductor radiation detector diodes fabricated with yttrium contacts provide good gamma-ray spectroscopy data.
- Research Organization:
- PHDS Co., Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- SC0002477
- Assignee:
- DOESC
- Patent Number(s):
- 8,729,656
- Application Number:
- 13/068,811
- OSTI ID:
- 1532095
- Country of Publication:
- United States
- Language:
- English
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