방사선산업학회지 (Journal of Radiation Industry)

한국방사선산업학회 (Korean Society of Radiation Industry)
권호 표지

이동형 핵종 분석 장치용 CZT 반도체 검출기의 완충전극에 대한 연구

A Study of Interface Layer on CdZnTe Radiation Sensor for Potable Isotope Identifier

  • 조윤호 (한국원자력연구원 정읍방사선과학연구소 방사선기기연구부) ;
  • 박세환 (한국원자력연구원 정읍방사선과학연구소 방사선기기연구부) ;
  • 김용균 (한양대학교 원자력공학과) ;
  • 하장호 (한국원자력연구원 정읍방사선과학연구소 방사선기기연구부)
  • Cho, Yun Ho (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Park, Se-Hwan (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Kim, Yong Kyun (Department of Nuclear Engineering, Hanyang University) ;
  • Ha, Jang Ho (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
  • 투고 : 2011.02.23
  • 심사 : 2011.03.07
  • 발행 : 2011.03.30

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초록

The electrical and mechanical properties of electrode for radiation detection are very important. In general, Au electrode and CZT crystal are combined to form ohmic contacts, and the best energy resolution is shown at the Au electrode. The metal contacts are fabricated by electroless deposition method, sputtering deposition method and thermal evaporation method. The electrode fabrication is easy with use of the thermal evaporation method, while an adhesive strength is weak. Thus interface materials such as Ag, Al and Ni were investigated to overcome defects generated by the this method. The thickness of the interface material between the Au electrode and the CZT crystal was 100 Angstroms, the Au electrode with thickness of 400 Angstroms was deposited. The Al+Au electrode is shown that the results of current-voltage and radiation response are similar to results of Au electrode.

키워드

과제정보

연구 과제 주관 기관 : 교육과학기술부