Johan Liu


Professor
Head of the Electronics Materials and Systems Laboratory
Department of Microtechnology and Nanoscience
​Email: jliu@chalmers.se
Phone: +46 31 772 3067
Office: Kemivägen 9, MC2 building, Room A517
Homepage: https://www.chalmers.se/sv/personal/Sidor/Johan-Liu.aspx
 
Research focus:
Manipulation, engineering and understanding of thermal and electrical properties of 2D materials; Functionalization of 2D materials

Characterization methods:
Thermal characterization including Time Domain Time Reflectance method, 3 omega, self-heating, laser-flash, Hot-disk, IR imaging and ASTM steady state method.

Focus of future research:
  • Characterization of graphene and hBN for thermal and composite applications with special focus on electronics cooling in base station, power modules and mobile devices.
  • Characterization of functionalized graphene and graphene oxide for use in concrete piles, fencing and concrete painting.
  • Graphene and CNT for advanced 3D electronics interconnect applications. 

Highlights of previous research:

Functionalization mediates heat transport in graphene nanoflakes
Haoxue Han, Yong Zhang, Nan Wang, Majid Kabiri Samani, Yuxiang Ni, Zainelabideen Mijbil, Michael Edwards, Shiyun Xiong, Kimmo Saaskilahti, Hatef Sadeghi, Murali Murugesan, Yifeng Fu, Lilei Ye, Steven Bailey, Yuriy Kosevich, Colin Lambert, Johan Liu, Sebastian Volz
"Reveal the importance of phonon-couplers for thermal transport in graphene nanoflakes"
Nat. Commun. 7:11281 doi: 10.1038/ncomms11281 (2016).



Functionalization facilitates thermal transport of graphene to surroundings


Improved Heat Dissipation based on Few-layer Graphene with Intercalated Silane-functionalization Molecules
Yong Zhang, Haoxue Han, Nan Wang, Pengtu Zhang, Yifeng Fu, Murali Murugesan, Michael Edwards, Sebastian Volz, Johan Liu
“Novel processes for manipulating of high thermal conductivity graphene films”
Advanced Functional material 5 JUN 2015 | http://dx.doi.org/10.1002/adfm.201500990

Published: Mon 13 Nov 2017.