Growth of Super Long Aligned Brush-Like Carbon Nanotubes

Chakrabarti, Supriya; Nagasaka, T.; Yoshikawa, Yuya; Pan, Lujun; Nakayama, Yoshikazu

doi:10.1143/jjap.45.l720

Cited by 91 publications

(81 citation statements)

References 17 publications

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“…The results are summarized in Table 1. The CNT synthesis ratio q in this work is almost 712 times of that in [4] and 1.4 times of that in [14]. In this work, the synthesis time was 60 min, ethylene flow rate was 40 sccm and the iron film thickness is 2 nm.…”

Section: Resultsmentioning

confidence: 79%

“…There have been many reports dealing with the synthesis of well-aligned MW-CNTs [5][6][7][8][9][10] and single-walled carbon nanotubes (SW-CNTs) [11,12]. Liquid precursor [7,13] and water assisted methods [11,12,14] were introduced to synthesize ultralong CNT forest. All of these studies used either water assisted or carbon source added in water to increase the catalyst activity and to elongate CNT length.…”

Section: Introductionmentioning

confidence: 99%

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Temperature enhanced growth of ultralong multi-walled carbon nanotubes forest

Chang

2009

Current Applied Physics

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Section: Resultsmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Temperature enhanced growth of ultralong multi-walled carbon nanotubes forest

Chang

2009

Current Applied Physics

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“…The resulting low catalytic activity of CNT synthesis has not only reduced the availability of SWNTs, but the dead catalysts remain in the as-grown material as impurities. Addition of a controlled amount of water vapor in the growth ambient can dramatically enhance the activity and lifetime of the catalysts and address these problems [157][158][159][160][161]. This new CVD approach denoted as "supergrowth", works best on substrates with catalytic nanoparticles.…”

Section: Supergrowthmentioning

confidence: 99%

Carbon Nanotube Synthesis and Organization

Joselevich

Dai

Liu

et al. 2007

Topics in Applied Physics

119

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Abstract. The synthesis, sorting and organization of carbon nanotubes are major challenges toward future applications. This chapter reviews recent advances in these topics, addressing both the bulk production and processing of carbon nanotubes, and their organization into ordered structures, such as fibers, and aligned arrays on surfaces. The bulk synthetic methods are reviewed with emphasis on the current advances toward mass production and selective synthesis. New approaches for the sorting of carbon nanotubes by structure and properties are described in the context of the specific physical or chemical interactions at play, and referring to the characterization methods described in the contribution by Jorio et al. Recent advances in the organization of carbon nanotubes into fibers are reviewed, including methods based on spinning from solution, from dry forests, and directly from the gas phase during growth. The organization of carbon nanotubes on surfaces, as a critical prerequisite toward future applications in nanoelectronics, is reviewed with particular emphasis given to the synthesis of both vertically and horizontally aligned arrays. Vertically aligned growth has been recently boosted by the development of highly efficient catalytic processes. Horizontally aligned growth on surfaces can yield a whole new array of carbon-nanotube patterns, with interesting physical properties and potential applications. Different mechanisms of horizontally aligned growth include field-and flow-directed growth, as well as recently developed methods of surface-directed growth on single-crystal substrates by epitaxial approaches. The proposed mechanisms pertinent to each technique are discussed throughout this review, as well as their potential applications and critical aspects toward future progress.

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“…For nanotubes with larger length [8] one of the most important scattering mechanisms should originate from acoustic phonons. In the reference [9] for the different mechanisms of electron scattering by acoustic phonons analytical formulas for the conductivity of a quantum cylinder in a longitudinal magnetic field were obtained, taking into account effects of phonon confinement.…”

Section: Introductionmentioning

confidence: 99%