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Amorphous silicon/crystalline silicon heterojunctions for nuclear radiation detector applications

Conference ·
OSTI ID:513008
; ; ;  [1];  [2]
  1. Lawrence Berkeley National Lab., CA (United States)
  2. Quantrad Sensor, Inc., Santa Clara, CA (United States)
Results on the characterization of the electrical properties of amorphous silicon films for the three different growth methods, RF sputtering, PECVD, and LPCVD are reported. The performance of these a-Si films as heterojunctions on high resistivity p-type and n-type crystalline silicon is examined by measuring the noise, leakage current and the alpha particle response of 5 mm diameter detector structures. It is demonstrated that heterojunction detectors formed by RF sputtered films and PECVD films are comparable in performance with conventional surface barrier detectors. The results indicate that the a-Si/c-Si heterojunctions have the potential to greatly simplify detector fabrication. Directions for future avenues of nuclear particle detector development are indicated.
OSTI ID:
513008
Report Number(s):
CONF-961123--
Country of Publication:
United States
Language:
English