Reducing the electronic contact resistance at the interfaces of nanostructured materials is a major goal for many kinds of planar and three dimensional devices. In this work, we develop a method to enhance the electronic transport at rough interfaces by inserting a two dimensional flexible and conductive graphene sheet. We observe that an ultra-thin graphene layer with a thickness of 0.35 nm can remarkably reduce the roughness of a sample in a factor of 40%, avoiding the use of thick coatings, leading to a more homogeneous current flow, and extraordinarily increasing the total current compared to the graphene-free counterpart. Due to its simplicity and performance enhancement, this methodology can be of interest to many interface and device designers.
Improvement of the electrical contact resistance at rough interfaces using two dimensional materials
Jianchen Hu, Chengbin Pan, Heng Li, Panpan Shen, Hui Sun, Huiling Duan, Mario Lanza; Improvement of the electrical contact resistance at rough interfaces using two dimensional materials. J. Appl. Phys. 7 December 2015; 118 (21): 215301. https://doi.org/10.1063/1.4936366
Download citation file: