Room temperature negative differential resistance in DNA-based molecular devices

  title={Room temperature negative differential resistance in DNA-based molecular devices},
  author={Peng-Chung JangJian and Tzeng-Feng Liu and Mei Yi Li and Ming Shih Tsai and Chia-Ching Chang},
  journal={Applied Physics Letters},
A molecular device fabricated from metallic deoxyribonucleic acid (M-DNA) exhibits a negative differential resistance (NDR) behavior. When two gold electrodes were connected by Ni2+-chelated DNA, which was converted from λ-DNA, not only was the conductivity of DNA improved, but a NDR device was formed as a full cyclic voltage sweep was applied to measure its current versus voltage characteristics at room temperature and in an ambient environment. Such electronic characteristics of a M-DNA… 

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