Abstract
Recently, investigating the unique electrical properties of low-dimensional (One- and two-dimensional) materials as alternatives to silicon has become popular among researchers. In order to observe the intrinsic properties and device performance, it is essential to elucidate the electron transport at the electrode/nanomaterial interface. This study reviews various current approaches used to evaluate the contact resistance of electronic devices based on the most representative low-dimensional nano-materials such as carbon nanotubes, nanowires, graphene and molybdenum disulfide. Various analytical factors that have generally not been considered in conventional electronics are introduced to define the contact resistance within the nano-meter scale. Additionally, a comparison of three different methods for determining the contact resistance to interpret experimental data is conducted. Finally, several attempted efforts to reduce the contact resistance are presented.
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Recommended by Editor Jungho Hwang
Seong Chan Jun worked at the NSEC (Nano Scale Science & Research Center) and the SAIT (Samsung Advanced Institute of Technology) sequentially after he received Ph.D. from Columbia University (New York, NY). He was Appointed Professor at Yonsei University (Seoul, Korea) and has been there since 2008.
Jae Young Park recieved his B.S. degree in mechanical engineering from Yonsei University in 2016. He is now an M.S. candidate in mechanical engineering in Yonsei University. One of his research specialities is nano electronics with two-dimensional materials.
Jinsoo Cho worked at Samsung Electronics Co. Ltd. after he recieved Ph.D. from Georgia Institute of Technology (Atlanta, GA). He is currently an Associate Professor in the Dept. of Computer Engineering, Gachon University (Seongnam, Korea) since 2006.
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Park, J.Y., Cho, J. & Jun, S.C. Review of contact-resistance analysis in nano-material. J Mech Sci Technol 32, 539–547 (2018). https://doi.org/10.1007/s12206-018-0101-9
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DOI: https://doi.org/10.1007/s12206-018-0101-9