Electrical Property and Application of Au Electrodes Passivated with DDT Molecules

Au 전극의 DDT 보호막 처리 및 그 전기적 효과와 응용

  • 최민수 (고려대 공대 전자전기공학과) ;
  • 이동진 (고려대 공대 전자전기공학과) ;
  • 김태근 (고려대 공대 전자전기공학과) ;
  • 황성우 (고려대 공대 전자전기공학과)
  • Published : 2010.01.01


We report the passivation characteristics of dodecanethiol (DDT) molecules on gold electrodes of field effect transistor bio-sensors. The leakage current between the electrolyte and the electrode can be as small as 3pA when 7 mM of DDT passivation is performed. The DDT layer is also shown to resist the attack of acid up to 120 mins.


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