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High detection efficiency micro-structured solid-state neutron detector with extremely low leakage current fabricated with continuous p-n junction
- Source :
- Applied Physics Letters. 102:152107
- Publication Year :
- 2013
- Publisher :
- AIP Publishing, 2013.
-
Abstract
- We report the continuous p-n junction formation in honeycomb structured Si diode by in situ boron deposition and diffusion process using low pressure chemical vapor deposition for solid-state thermal neutron detection applications. Optimized diffusion temperature of 800 °C was obtained by current density-voltage characteristics for fabricated p+-n diodes. A very low leakage current density of ∼2 × 10−8 A/cm2 at −1 V was measured for enriched boron filled honeycomb structured neutron detector with a continuous p+-n junction. The neutron detection efficiency for a Maxwellian spectrum incident on the face of the detector was measured under zero bias voltage to be ∼26%. These results are very encouraging for fabrication of large area solid-state neutron detector that could be a viable alternative to 3He tube based technology.
- Subjects :
- Materials science
Physics and Astronomy (miscellaneous)
Physics::Instrumentation and Detectors
business.industry
Detector
Analytical chemistry
chemistry.chemical_element
Particle detector
Neutron temperature
chemistry
Optoelectronics
Neutron detection
business
Boron
p–n junction
Current density
Diode
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 102
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........b4eba929f3a9ae9da1c8047549c7dc7a
- Full Text :
- https://doi.org/10.1063/1.4802204