Transport in hybrid electronic devices based on a modified DNA nucleoside (deoxyguanosine)

Details Transport in hybrid electronic devices based on a modified DNA nucleoside (deoxyguanosine) Transport in hybrid electronic devices based on a modified DNA nucleoside (deoxyguanosine)

2000-06-26

arxiv.org/abs/cond-mat/0006402v1

Physics

Condensed Matter

Soft Condensed Matter

Submitted to Phys. Rev. Lett

Scientific paper

We report on a new class of hybrid electronic devices based on a DNA nucleoside (deoxyguanosine lipophilic derivative) whose assembled polymeric ribbons interconnect a submicron metallic gate. The device exhibits large conductivity at room temperature, rectifying behaviour and strong current-voltage hysteresis. The transport mechanism through the molecules is investigated by comparing films with different self-assembling morphology. We found that the main transport mechanism is connected to pi-pi interactions between guanosine molecules in adjacent ribbons, consistently with the results of our first-principles calculations.

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