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RESONANT TUNNELING THROUGH NANO-SIZE QUANTUM DOT EMBEDDED IN AMORPHOUS TISSUES

LIU MING WANG ZI-OU HE YU-LIANG JIANG XING-LIU

RESONANT TUNNELING THROUGH NANO-SIZE QUANTUM DOT EMBEDDED IN AMORPHOUS TISSUES

LIU MING, WANG ZI-OU, HE YU-LIANG, JIANG XING-LIU
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  • Received Date:  22 September 1997
  • Published Online:  05 February 1998

RESONANT TUNNELING THROUGH NANO-SIZE QUANTUM DOT EMBEDDED IN AMORPHOUS TISSUES

  • 1. 北京航空航天大学应用物理系,北京 100083

Abstract: The diode consisting of nano-silicon quantum dots embedded in an amorphous silicon matrix was fabricated and the discontinuous staircases on its I-V curves were observed.There were two distinct regimes on I-V curves of diode:(i) the sequential tunneling regime,where current increased monotonously with increasing negative bias;(ii) the resonant tunneling regime,where the current increased dramatically with increasing negative bias,and three quantum staircases appeared.It was found that the steps was related to the grains of the deposited film.The qualitative explanation of this physical phenomenon was proposed in terms of the material structural characteristics.

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