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.
@article{arxiv.cond-mat/0006402,
title = {Transport in hybrid electronic devices based on a modified DNA nucleoside (deoxyguanosine)},
author = {R. Rinaldi and E. Branca and R. Cingolani and R. Di Felice and E. Molinari and S. Masiero and G. P. Spada and G. Gottarelli and A. Garbesi},
journal= {arXiv preprint arXiv:cond-mat/0006402},
year = {2007}
}