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Atomic Layer Deposi...
Atomic Layer Deposition of Buffer Layers for the Growth of Vertically Aligned Carbon Nanotube Arrays
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- Li, Haohao (författare)
- Shanghai University
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- Yuan, G. (författare)
- Shanghai University
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- Shan, B. (författare)
- Shanghai University
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- Zhang, Xiao Xin (författare)
- Shanghai University
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- Ma, Hongping (författare)
- Fudan University
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- Tian, Yingzhong (författare)
- Shanghai University
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- Lu, Hongliang (författare)
- Fudan University
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- Liu, Johan, 1960 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Shanghai University
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(creator_code:org_t)
- 2019-04-02
- 2019
- Engelska.
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Ingår i: Nanoscale Research Letters. - : Springer Science and Business Media LLC. - 1556-276X .- 1931-7573. ; 14
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://nanoscaleres...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- Vertically aligned carbon nanotube arrays (VACNTs) show a great potential for various applications, such as thermal interface materials (TIMs). Besides the thermally oxidized SiO 2 , atomic layer deposition (ALD) was also used to synthesize oxide buffer layers before the deposition of the catalyst, such as Al 2 O 3 , TiO 2 , and ZnO. The growth of VACNTs was found to be largely dependent on different oxide buffer layers, which generally prevented the diffusion of the catalyst into the substrate. Among them, the thickest and densest VACNTs could be achieved on Al 2 O 3 , and carbon nanotubes were mostly triple-walled. Besides, the deposition temperature was critical to the growth of VACNTs on Al 2 O 3 , and their growth rate obviously reduced above 650 °C, which might be related to the Ostwald ripening of the catalyst nanoparticles or subsurface diffusion of the catalyst. Furthermore, the VACNTs/graphene composite film was prepared as the thermal interface material. The VACNTs and graphene were proved to be the effective vertical and transverse heat transfer pathways in it, respectively.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Nyckelord
- Thermal interface materials
- Oxide buffer layers
- Atomic layer deposition
- Vertically aligned carbon nanotube arrays
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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