| 초록 |
In this talk, I will present recent results in two applications of CVD-grown graphene for transparent/flexible electronics. First, transparent conductive graphene electrodes are ready for commercialization. Chemical doping can decrease the sheet resistance of graphene by increasing the carrier density. We have controlled the carrier doping in graphene by introducing dipole layers (i.e., end-functionalized self-assembled monolayers (SAMs), polymer with functional groups) into graphene. Second, the performances of graphene transistors are limited by charged impurity scattering and/or the zero bandgap of pristine graphene. We have shown that hydrophobic SAMs inserted between the graphene and the SiO2 substrate can increase the carrier mobility of graphene transistors. Furthermore, we have devised a method to open a bandgap in bilayer graphene with dual molecular doping. More excitingly, we have demonstrated control over the bandgap of graphene with selective-area fluorination. |
