TY - GEN
T1 - Current transport, gate dielectrics and band gap engineering in graphene devices
AU - Zhu, Wenjuan
AU - Perebeinos, Vasili
AU - Neumayer, Deborah
AU - Freitag, Marcus
AU - Jenkins, Keith
AU - Zhu, Yu
AU - Avouris, Phaedon
PY - 2010
Y1 - 2010
N2 - In this work, we studied current transport in mono-, bi- and tri-layer graphene. We find that both the temperature and carrier density dependencies in monolayer and bi-/tri-layers are diametrically opposite. These difference can be understood by the different density-of-states and the additional screening of the electrical field of the substrate surface polar phonons in bi-layer/tri-layer graphenes. We also find that silicon nitride can provide uniform coverage of graphene in field-effect transistors while preserving the channel mobility. Using this insulator, we studied field-induced band-gap or band-overlap in graphene with various numbers of layers.
AB - In this work, we studied current transport in mono-, bi- and tri-layer graphene. We find that both the temperature and carrier density dependencies in monolayer and bi-/tri-layers are diametrically opposite. These difference can be understood by the different density-of-states and the additional screening of the electrical field of the substrate surface polar phonons in bi-layer/tri-layer graphenes. We also find that silicon nitride can provide uniform coverage of graphene in field-effect transistors while preserving the channel mobility. Using this insulator, we studied field-induced band-gap or band-overlap in graphene with various numbers of layers.
UR - https://www.scopus.com/pages/publications/78751538821
U2 - 10.1109/ICSICT.2010.5667607
DO - 10.1109/ICSICT.2010.5667607
M3 - Conference contribution
AN - SCOPUS:78751538821
SN - 9781424457984
T3 - ICSICT-2010 - 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology, Proceedings
SP - 1214
EP - 1217
BT - ICSICT-2010 - 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology, Proceedings
T2 - 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology
Y2 - 1 November 2010 through 4 November 2010
ER -