TY - JOUR
T1 - Gate-controlled electron transport in coronenes as a bottom-up approach towards graphene transistors
AU - Diez-Perez, Ismael
AU - Li, Zhihai
AU - Hihath, Joshua
AU - Li, Jinghong
AU - Zhang, Chengyi
AU - Yang, Xiaomei
AU - Zang, Ling
AU - Dai, Yijun
AU - Feng, Xinliang
AU - Muellen, Klaus
AU - Tao, Nongjian
N1 - Funding Information:
We thank NSF (CHE-0554786, NJT, CHE 0641353, LZ) and DOE (DE-FG03-01ER45943, IDP) for financial support. I.D.P. was also supported by a Marie Curie International Outgoing Fellowship within the 7th European Community Framework Program.
PY - 2010
Y1 - 2010
N2 - Graphene is considered to be a large aromatic molecule, the limiting case of the family of polycyclic aromatic hydrocarbons. This fascinating two-dimensional material has many potential applications, including field effect transistors (FETs). However, the graphene sheets in these devices have irregular shapes and variable sizes, and contain various impurities and defects, which are undesirable for applications. Moreover, the bandgap of graphene is zero and, consequently, the on/off ratios of graphene FETs are small, making it difficult to build logic circuits. To overcome these difficulties, we report here a bottom-up attempt to fabricate nanoscale graphene FETs. We synthesize structurally well-defined coronene molecules (consisting of 13 benzene rings) terminated with linker groups, bridge each molecule to source and drain electrodes through the linkers, measure conductance and demonstrate the FET behaviour of the molecule.
AB - Graphene is considered to be a large aromatic molecule, the limiting case of the family of polycyclic aromatic hydrocarbons. This fascinating two-dimensional material has many potential applications, including field effect transistors (FETs). However, the graphene sheets in these devices have irregular shapes and variable sizes, and contain various impurities and defects, which are undesirable for applications. Moreover, the bandgap of graphene is zero and, consequently, the on/off ratios of graphene FETs are small, making it difficult to build logic circuits. To overcome these difficulties, we report here a bottom-up attempt to fabricate nanoscale graphene FETs. We synthesize structurally well-defined coronene molecules (consisting of 13 benzene rings) terminated with linker groups, bridge each molecule to source and drain electrodes through the linkers, measure conductance and demonstrate the FET behaviour of the molecule.
UR - http://www.scopus.com/inward/record.url?scp=84857343558&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857343558&partnerID=8YFLogxK
U2 - 10.1038/ncomms1029
DO - 10.1038/ncomms1029
M3 - Article
C2 - 20975686
AN - SCOPUS:84857343558
SN - 2041-1723
VL - 1
JO - Nature communications
JF - Nature communications
IS - 3
M1 - 31
ER -