Development and optimization of a secure injection CVD process to grow aligned carbon nanotubes on large substrates

Patel, S; Magga, Youssef; Belkady, L; Hibert, E; Porterat, D.; Boulanger, P. Le; Pinault, Mathieu; Mayne-l'Hermite, M.

doi:10.1088/1742-6596/429/1/012053

Cited by 2 publications

(4 citation statements)

References 30 publications

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“…Substrates of different nature and morphology are evidenced as suitable for the growth of VACNT due to easy-to-analyze or easy-to-industrialize properties. Various substrates have been used for the growth of VACNT, such as silicon wafers [9,24,31,34,35], quartz [36], aluminium foil [13,37,38], piezoelectric aluminium nitride film [39], stainless steel [40], titanium wire [41], magnesia and magnesium aluminate [42], as well as carbon fiber cloth [36,[43][44][45] or paper [46,47], graphite [5,48], graphene paper [49] or oxide [50], reticulated carbon foam [51], and many others [21,52]. Among all, commercial fibrous carbon 3D substrates (CF tow, cloth, felt, paper, or other woven or non-woven fabrics) are advantageous since they possess exceptionally high mechanical strength and well-defined anisotropic thermal and electrical properties [53].…”

Section: Substrates For Growth Of Vacntmentioning

confidence: 99%

“…Keeping this in mind, the use of CVD to deposit DBL with improved conductivity properties is one viable solution toward double-step single-system growth of VACNT. Well-defined deposition of SiO x via flow injection/evaporation in CVD is already performed to deposit DBL on carbon fiber substrates for the growth of VACNT [36,43,44,[95][96][97][98][99][100]. The process yields the deposition of ceramic DBL from organometallic precursors, also used on other substrates, such as stainless steel, palladium, ceramics, or any other substrates compatible with the temperature of VACNT growth [43,97].…”

Section: Via Chemical Vapour Deposition (Cvd)mentioning

confidence: 99%

“…In this subsection, the review summarizes different approaches reported for the use of un-/modified carbon substrate or the same with predeposited DBL (via CVD or PVD) for the growth of VACNT. Even though few studies have examined the growth of VACNT on a carbonaceous substrate without the use of interface [5,32,48,49], promoted growth of tunable VACNT on CF is today achievable through the use of suitable DBL [4,36,43,44,47,[95][96][97][98][99][100]. The cited and other references therein show that covering a CF substrate with an intermediate DBL can radically improve the growth of VACNT and prevent the possible degradation of the fiber structural properties.…”

Section: Growth Of Vacnt On Carbon Substrates With a Focus On Cf Subs...mentioning

confidence: 99%

“…Compared to neat C/C composites, calefactive oxidation tests show superior oxidation resistance of C/C composites with grown aligned CNT [129]. However, the low density and high diameter CNT obtained through this approach still demand further research before reaching an advanced technological readiness level compared to VACNT obtained on metal oxide, insulating, DBL [36,43,44,[95][96][97][98][99]. Moreover, the high-temperature CVD deposition of the PyC (above 1000 • C) is a disadvantage for the use of the presented DBL that should influence the final cost and commercialization of potential CF-VACNT composites.…”

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confidence: 99%

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Conducting Interface for Efficient Growth of Vertically Aligned Carbon Nanotubes: Towards Nano-Engineered Carbon Composite

2022

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Vertically aligned carbon nanotubes (VACNT) are manufactured nanomaterials with excellent properties and great potential for numerous applications. Recently, research has intensified toward achieving VACNT synthesis on different planar and non-planar substrates of various natures, mainly dependent on the user-defined application. Indeed, VACNT growth has to be adjusted and optimized according to the substrate nature and shape to reach the requirements for the application envisaged. To date, different substrates have been decorated with VACNT, involving the use of diffusion barrier layers (DBLs) that are often insulating, such as SiO2 or Al2O3. These commonly used DBLs limit the conducting and other vital physico-chemical properties of the final nanomaterial composite. One interesting route to improve the contact resistance of VACNT on a substrate surface and the deficient composite properties is the development of semi-/conducting interlayers. The present review summarizes different methods and techniques for the deposition of suitable conducting interfaces and controlled growth of VACNT on diverse flat and 3-D fibrous substrates. Apart from exhibiting a catalytic efficiency, the DBL can generate a conducting and adhesive interface involving performance enhancements in VACNT composites. The abilities of different conducting interlayers are compared for VACNT growth and subsequent composite properties. A conducting interface is also emphasized for the synthesis of VACNT on carbonaceous substrates in order to produce cost-effective and high-performance nano-engineered carbon composites.

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