Ambipolar Transport in Solution-Synthesized Graphene Nanoribbons.

Academic Journal

Gao J; Department of Chemical and Biological Engineering, Princeton University , Princeton, New Jersey 08544, United States.
Uribe-Romo FJ
Saathoff JD
Arslan H
Crick CR
Hein SJ
Itin B; The New York Structural Biology Center , 89 Convent Avenue, New York, New York 10027, United States.
Clancy P
Dichtel WR
Loo YL; Department of Chemical and Biological Engineering, Princeton University , Princeton, New Jersey 08544, United States.

ACS nano [ACS Nano] 2016 Apr 26; Vol. 10 (4), pp. 4847-56. Date of Electronic Publication: 2016 Apr 13.

English

Graphene nanoribbons (GNRs) with robust electronic band gaps are promising candidate materials for nanometer-scale electronic circuits. Realizing their full potential, however, will depend on the ability to access GNRs with prescribed widths and edge structures and an understanding of their fundamental electronic properties. We report field-effect devices exhibiting ambipolar transport in accumulation mode composed of solution-synthesized GNRs with straight armchair edges. Temperature-dependent electrical measurements specify thermally activated charge transport, which we attribute to inter-ribbon hopping. With access to structurally precise materials in practical quantities and by overcoming processing difficulties in making electrical contacts to these materials, we have demonstrated critical steps toward nanoelectric devices based on solution-synthesized GNRs.