A Model of the Performance Characteristics of Silicon-Gallium Infrared Detectors for Low Background Applications

The Si:Ga system is modeled for detection of infrared (IR) radiation in low backgrounds. The responsivity and detectivity are calculated as functions of residual B, compensation ratio, and temperature. The results demonstrate a large potential for improvement in device performance if starting materi...

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Hauptverfasser: McGuigan,S, Szmulowicz,F, Hemenger,P M
Format: Report
Sprache:eng
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Zusammenfassung:The Si:Ga system is modeled for detection of infrared (IR) radiation in low backgrounds. The responsivity and detectivity are calculated as functions of residual B, compensation ratio, and temperature. The results demonstrate a large potential for improvement in device performance if starting material with a low residual B is used to manufacture the detectors. These improvements include higher responsivity, higher operating temperature, increased detectivity, greater uniformity in spatial response, and increased radiation hardness. Prepared in cooperation with Dayton Univ., OH. Research Inst., Contract F33615-81-C-5095.