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Manipulate Interface Thermal Conductance of Metal-Graphene-Substrate Using Graphene Thermal Stability
ZHAO Weiwei 1,ZHANG Chunwei 2,YONG Guoqing 2,HUANG Peng 2,BI Kedong 2 * #,CHEN Yunfei 2,NI Zhenhua 3
1.School of Mechanical Engineering, Southeast University, Nanjing 211189
2.School of Mechanical Engineering, Southeast University, Nanjing, 211189
3.Department of Physics, Southeast University, Nanjing, 211189
*Correspondence author
#Submitted by
Subject:
Funding: Doctoral Fund of Ministry of Education of China (No.20090092120004, 20100092110051)
Opened online:10 January 2013
Accepted by: none
Citation: ZHAO Weiwei,ZHANG Chunwei,YONG Guoqing.Manipulate Interface Thermal Conductance of Metal-Graphene-Substrate Using Graphene Thermal Stability[OL]. [10 January 2013] http://en.paper.edu.cn/en_releasepaper/content/4512357
 
 
Graphene defects have played an important role in graphene's electrical, optical and thermal properties. In this work, we measured the interface thermal conductance of Al/graphene with different defect situations/silica using transient thermoreflectance technique. We use the graphene thermal stability of being annealed in different temperatures to manipulate the graphene defects. The transient thermoreflectance technique measurement results suggest that as graphene defects increase, the interface thermal conductance increases as well. The cause of the interface thermal conductance increase might be the graphene disintegration which starts from graphene imperfection rings and the oxygen doping which will enhance the metal-graphene bonding energy.
Keywords:thermal stability; graphene; interface thermal conductance; transient thermoreflectance technique
 
 
 

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