TY - JOUR
T1 - Unexpectedly high thermal boundary resistance of Cr/graphene/SiO2 structure
AU - Zhan, Tianzhuo
AU - Wang, Haidong
AU - Xu, Yibin
N1 - Publisher Copyright:
© 2017 The Japan Society of Applied Physics.
PY - 2017/5
Y1 - 2017/5
N2 - We measured the thermal resistances of the Au/graphene/SiO2, Au/Ti/graphene/SiO2, and Au/Cr/graphene/SiO2 structures. The thermal resistances of the three structures were found to be significantly higher than those of the corresponding graphene-free structures, indicating that even monolayer graphene can greatly increase the thermal boundary resistance at metal/SiO2 interfaces. Furthermore, the thermal resistance of the Au/Cr/graphene/SiO2 structure is unexpectedly significantly higher than those of the other two structures, indicating that the diffusion mismatch model (DMM) fails to predict the thermal boundary resistance at metal/graphene interfaces. The poly(methyl methacrylate) (PMMA) residue contamination layer on the graphene surface may play an important role in increasing the thermal resistances of metal/graphene/SiO2 structures. Also, transition metal/graphene and transition metal/PMMA interactions may also affect the thermal boundary resistance.
AB - We measured the thermal resistances of the Au/graphene/SiO2, Au/Ti/graphene/SiO2, and Au/Cr/graphene/SiO2 structures. The thermal resistances of the three structures were found to be significantly higher than those of the corresponding graphene-free structures, indicating that even monolayer graphene can greatly increase the thermal boundary resistance at metal/SiO2 interfaces. Furthermore, the thermal resistance of the Au/Cr/graphene/SiO2 structure is unexpectedly significantly higher than those of the other two structures, indicating that the diffusion mismatch model (DMM) fails to predict the thermal boundary resistance at metal/graphene interfaces. The poly(methyl methacrylate) (PMMA) residue contamination layer on the graphene surface may play an important role in increasing the thermal resistances of metal/graphene/SiO2 structures. Also, transition metal/graphene and transition metal/PMMA interactions may also affect the thermal boundary resistance.
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U2 - 10.7567/JJAP.56.055101
DO - 10.7567/JJAP.56.055101
M3 - Article
AN - SCOPUS:85018452248
SN - 0021-4922
VL - 56
JO - Japanese journal of applied physics
JF - Japanese journal of applied physics
IS - 5
M1 - 055101
ER -