A Structure Model and Growth Mechanism for Multishell Carbon Nanotubes

Carbon nanotubes (CNTs) possess both remarkable optical properties and high potential for integration in various photonic devices. We overview, here, recent progress in CNT applications in fibre optics putting particular emphasis on fibre lasers. We discuss fabrication and characterisation of different CNTs, development of CNTbased saturable absorbers (CNT-SA), their integration and operation in fibre laser cavities putting emphasis on stateof-the-art fibre lasers, mode locked using CNT-SA. We discuss new design concepts of high-performance ultrafast operation fibre lasers covering ytterbium (Yb), bismuth (Bi), erbium (Er), thulium (Tm) and holmium (Ho)-doped fibre lasers.

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“…However, the process of CNT formation is still questionable. Thus, there are several theories on growing mechanism [75,77].…”

Section: Arc Discharge Methodsmentioning

confidence: 99%

Carbon nanotubes for ultrafast fibre lasers

et al. 2016

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“…Open ends is a unique feature for nanotubes grown by rolling of lamellar structures, like C [22], BN [23], WS 2 [24], and so on. The nanotubes formed through that process normally possess hollow interior [25].…”

Section: Phase Distribution and Decomposition Behaviors Of Y 2 O 3 Prmentioning

confidence: 99%

Controlling the morphology of yttrium oxide through different precursors synthesized by hydrothermal method

Yanagisawa

2008

Journal of Solid State Chemistry

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Y 2 O 3 sheets, rods, needles and tubes were synthesized from three precursors through hydrothermal reactions followed by calcination. The phase distribution and decomposition behaviors of the three precursors, Y 2 (OH) 5.14 (NO3) 0.86 ·H 2 O, Y 4 O(OH) 9 (NO 3 ) and hexagonal Y(OH) 3 , were investigated. The reaction temperature and initial pH value during the hydrothermal reaction showed great influence on the shape and particle size of the products. The precursors were converted to Y 2 O 3 particles with the retained original morphology of the precursors.

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“…All others are semiconductors, which have the bandgap that is inversely related to the diameters of the nanotubes [54]. MWNTs are either nested CNT shells [55] or have cinnamon-roll-like structure [56].…”

Section: Properties Of Cntsmentioning

confidence: 99%

Carbon Nanotubes for Biomedical Applications

2011

Carbon Nanostructures

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Abstract-Carbon nanotubes (CNTs) have many unique physical, mechanical, and electronic properties. These distinct properties may be exploited such that they can be used for numerous applications ranging from sensors and actuators to composites. As a result, in a very short duration, CNTs appear to have drawn the attention of both the industry and the academia. However, there are certain challenges that need proper attention before the CNTbased devices can be realized on a large scale in the commercial market. In this paper, we report the use of CNTs for biomedical applications. The paper describes the distinct physical, electronic, and mechanical properties of nanotubes. The basics of synthesis and purification of CNTs are also reviewed. The challenges associated with CNTs, which remain to be fully addressed for their maximum utilization for biomedical applications, are discussed.

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A Structure Model and Growth Mechanism for Multishell Carbon Nanotubes

Cited by 223 publications

References 19 publications

Carbon nanotubes for ultrafast fibre lasers

Carbon nanotubes for ultrafast fibre lasers

Controlling the morphology of yttrium oxide through different precursors synthesized by hydrothermal method

Carbon Nanotubes for Biomedical Applications

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