Ultraviolet/ozone treatment to reduce metal-graphene contact resistance
نویسندگان
چکیده
منابع مشابه
Origin of Contact Resistance at Ferromagnetic Metal-Graphene Interfaces.
Edge contact geometries are thought to yield ultralow contact resistances in most nonferromagnetic metal-graphene interfaces, owing to their large metal-graphene coupling strengths. Here, we examine the contact resistance of edge- versus surface-contacted ferromagnetic metal-graphene interfaces (i.e., nickel- and cobalt-graphene interfaces) using both single-layer and few-layer graphene. Good q...
متن کاملContact Resistance for “End-Contacted” Metal-Graphene and Metal-Nanotube Interfaces from Quantum Mechanics
In this paper, we predict the current-voltage (I-V) characteristics and contact resistance of “end-contacted” metal electrode-graphene and metal electrode-carbon nanotube (CNT) interfaces for five metals, Ti, Pd, Pt, Cu, and Au, based on the first-principles quantum mechanical (QM) density functional and matrix Green’s function methods. We find that the contact resistance (normalized to surface...
متن کاملA Study on Graphene—Metal Contact
The contact resistance between graphene and metal electrodes is crucial for the achievement of high-performance graphene devices. In this study, we review our recent study on the graphene–metal contact characteristics from the following viewpoints: (1) metal preparation method; (2) asymmetric conductance; (3) annealing effect; (4) interfaces impact.
متن کاملReducing contact resistance in graphene devices through contact area patterning.
Performance of graphene electronics is limited by contact resistance associated with the metal-graphene (M-G) interface, where unique transport challenges arise as carriers are injected from a 3D metal into a 2D-graphene sheet. In this work, enhanced carrier injection is experimentally achieved in graphene devices by forming cuts in the graphene within the contact regions. These cuts are orient...
متن کاملA large scale systematic study of graphene/metal contact resistance using cTLM
In this work, a systematic study of the graphene/metal contact resistance (RC) is conducted. The circular Transfer Length Method (cTLM) is used to determine the RC values with several metals. Samples with Cu, Ti, Ni, Pt, Ag, Pd and Au contacts were fabricated and electrically characterized. Our results indicate that noble metals show lower RC. The lowest RC was observed for Au samples (~2.3kΩ.μ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2013
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.4804643