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Tailoring the Therm...
Tailoring the Thermal and Mechanical Properties of Graphene Film by Structural Engineering
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- Wang, Nan, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Dept Microtechnol & Nanosci MC2, EMSL, Kemivagen 9, SE-41296 Gothenburg, Sweden
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- Kabiri Samani, Majid, 1976 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Dept Microtechnol & Nanosci MC2, EMSL, Kemivagen 9, SE-41296 Gothenburg, Sweden
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- Li, Hu, 1986- (författare)
- Uppsala universitet,Tillämpad materialvetenskap
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- Dong, Lan (författare)
- Tongji University,Tongji Univ, Ctr Phonon & Thermal Energy Sci, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China;Tongji Univ, Inst Adv Study, Shanghai 200092, Peoples R China
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- Zhang, Zhongwei (författare)
- Tongji University,Tongji Univ, Ctr Phonon & Thermal Energy Sci, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China;Tongji Univ, Inst Adv Study, Shanghai 200092, Peoples R China
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- Su, Peng, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Dept Microtechnol & Nanosci MC2, EMSL, Kemivagen 9, SE-41296 Gothenburg, Sweden
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- Chen, S. (författare)
- Shanghai University,Shanghai Univ, SMIT Ctr, Sch Automat & Mech Engn, 20 Changzhong Rd, Shanghai 201800, Peoples R China
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- Chen, Jie (författare)
- Tongji University,Tongji Univ, Ctr Phonon & Thermal Energy Sci, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China;Tongji Univ, Inst Adv Study, Shanghai 200092, Peoples R China
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- Huang, S. (författare)
- Shanghai University,Shanghai Univ, SMIT Ctr, Sch Automat & Mech Engn, 20 Changzhong Rd, Shanghai 201800, Peoples R China
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- Yuan, G. (författare)
- Shanghai University,Shanghai Univ, SMIT Ctr, Sch Automat & Mech Engn, 20 Changzhong Rd, Shanghai 201800, Peoples R China
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- Xu, Xiangfan (författare)
- Tongji University,Tongji Univ, Ctr Phonon & Thermal Energy Sci, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China;Tongji Univ, Inst Adv Study, Shanghai 200092, Peoples R China
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- Li, Baowen (författare)
- University of Colorado at Boulder,Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA
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- Leifer, Klaus, 1965- (författare)
- Uppsala universitet,Tillämpad materialvetenskap
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- Ye, L. (författare)
- SHT Smart High-Tech AB,SHT Smart High Tech AB, Hugo Grauers Gata 3B, SE-41133 Gothenburg, Sweden
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- Liu, Johan, 1960 (författare)
- Shanghai University,Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Dept Microtechnol & Nanosci MC2, EMSL, Kemivagen 9, SE-41296 Gothenburg, Sweden;Shanghai Univ, SMIT Ctr, Sch Automat & Mech Engn, 20 Changzhong Rd, Shanghai 201800, Peoples R China
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(creator_code:org_t)
- 2018-06-21
- 2018
- Engelska.
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Ingår i: Small. - : Wiley. - 1613-6810 .- 1613-6829. ; 14:29
- Relaterad länk:
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https://research.cha...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Due to substantial phonon scattering induced by various structural defects, the in-plane thermal conductivity (K) of graphene films (GFs) is still inferior to the commercial pyrolytic graphite sheet (PGS). Here, the problem is solved by engineering the structures of GFs in the aspects of grain size, film alignment, and thickness, and interlayer binding energy. The maximum K of GFs reaches to 3200 W m−1K−1and outperforms PGS by 60%. The superior K of GFs is strongly related to its large and intact grains, which are over four times larger than the best PGS. The large smooth features about 11 µm and good layer alignment of GFs also benefit on reducing phonon scattering induced by wrinkles/defects. In addition, the presence of substantial turbostratic-stacking graphene is found up to 37% in thin GFs. The lacking of order in turbostratic-stacking graphene leads to very weak interlayer binding energy, which can significantly decrease the phonon interfacial scattering. The GFs also demonstrate excellent flexibility and high tensile strength, which is about three times higher than PGS. Therefore, GFs with optimized structures and properties show great potentials in thermal management of form-factor-driven electronics and other high-power-driven systems.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- phonon transfer
- thermal conductivity
- turbostratic-stacking
- grain size
- graphene films
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Wang, Nan, 1988
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Kabiri Samani, M ...
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Li, Hu, 1986-
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Dong, Lan
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Zhang, Zhongwei
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Su, Peng, 1983
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Chen, S.
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Chen, Jie
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Huang, S.
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Yuan, G.
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Xu, Xiangfan
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Li, Baowen
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Leifer, Klaus, 1 ...
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Ye, L.
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Liu, Johan, 1960
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Annan fysik
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Den kondenserade ...
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Chalmers tekniska högskola
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