TEM image of CNTs and an Optical image of graphene on SiO2
​(a) TEM image of CNTs                                              (b) Optical image of graphene on SiO2

Development of graphene-carbon nanotube hybrid for electronics packaging applications

Project description
Both graphene and carbon nanotubes (CNTs) possess excellent electrical, thermal and mechanical properties due to the strong sp2 hybridized C-C bonds in their honeycomb lattice. Therefore extensive investigations have been carried out to bring graphene and CNTs for electronics applications such as thermal management, transparent electrodes, interconnects, supercapacitors, etc. However, many applications are suffering from the high contact resistance at the graphene and CNT contact interfaces. In this project, we will use a new method to develop a graphene-CNT hybrid material for electronics packaging application, in which the graphene and CNTs are covalently bonded so that the contact resistance is dramatically decreased.

This project will focus on experiment work. The work will mainly be performed in the MC2 cleanroom which is world class and houses more than 300 advanced equipments. Various processing conditions will be tuned to control the quality of the graphene-CNT hybrid material. After synthesis, the hybrid material will be transferred onto target substrates for characterization. This includes SEM, TEM, AFM, Raman, electrical, thermal and optical measurement, etc. At the last of the project, application of the hybrid material for transparent electrodes will be demonstrated.

Students with a background in material, electronics, nanotechnology, physics or equivalent is preferred. Experience in cleanroom work is a plus.
References
1. Yan Zheng et al., Rebar graphene, ACS Nano, 2014.
2. Geim A. & Novoselov K., The rise of graphene, Nature Materials, 2007.

For more information, please contact supervisor:
Assistant Professor Yifeng Fu, 031-772 1886, yifeng.fu@chalmers.se
Department: MC2

Published: Thu 21 Apr 2016. Modified: Fri 23 Sep 2016