Performance-determining factors in flexible transparent conducting single-wall carbon nanotube film

Song, Young-Yeal; Lee, Jung Woo; Kim, Tae Yoo; Jung, Hwan Jung; Jung, Yong Chae; Suh, Su Jeung; Yang, Cheol‐Min

doi:10.5714/cl.2013.14.4.255

Cited by 11 publications

(8 citation statements)

References 20 publications

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“…However, we note that a similar process has been observed by other groups. For example, Song et al 44 performed experiments building up SWNT-only films by successive dip-coating. Their published SEM images clearly show that, after 100 dips, the network is weak, consisting of criss-crossed bundles whose individual character is clearly visible.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Network Formation on the Mechanical Properties of 1D:2D Nano:Nano Composites

Coleman

2018

Chem. Mater.

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Mixtures of 1D carbon nanotubes and 2D nanosheets are important in electrochemical applications where the nanosheets are the active material, while the nanotubes provide electrical conductivity and mechanical reinforcement. While the conductivity of such nano:nano composites has been studied, the mechanical properties have not. Here we report a detailed study of the structural, electrical and mechanical properties of composites of MoS2 nanosheets mixed with carbon nanotubes at various volume fractions, . Microscopic analysis reveals the nanotube network to evolve from a loosely connected structure for <1% to a strongly entangled continuous structure for >1%. Significantly, while the network consists of low (~200) aspect-ratio bundles for <1 vol%, above this value entangled ropes predominate, with the aspect ratio rising sharply with increasing , reaching ~4700 for the 6.4 vol% sample. While this transition does not affect the electrical properties, it has a significant effect on the mechanical properties. Below =1%, both the modulus and failure strain follow short-fibre composite behaviour with the modulus increasing as per the rule of mixtures and failure strain falling with . However, above =1%, both parameters increase with , consistent with continuous-fibre network behaviour. The tensile strength also transitions at 1 vol% from a regime limited by the matrix-fibre interfacial strength (<1 vol%) to one limited by the strength of the ropes (>1 vol%). Similarly, the toughness is constant at low volume fraction but increases strongly for > 1 vol%, consistent with a model based on percolation theory.

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Section: Resultsmentioning

confidence: 99%

The Effect of Network Formation on the Mechanical Properties of 1D:2D Nano:Nano Composites

Coleman

2018

Chem. Mater.

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“…As a consequence, with the assistance of self-assembly CNTLCs, CNT films with specific structures, vertically aligned CNT arrays or horizontally aligned CNT arrays, can be obtained, which will have considerable potential to be used as transparent electrodes [356][357][358][359]. Compared to the traditional ITO electrodes, which are suffering from difficulties such as the brittleness of ITO, the rising cost of indium, and the high vacuum and temperature processing during the production, CNT electrodes have great advantages in terms of their flexibility, low cost, safe fabrication process and special conductivity anisotropy, which make them a good substitute for ITO in the LCD industries [360,361]. CNT films can also act as alignment layers to orient LC molecules via the CNT substrates due to the orientational structure and the π-π interaction between them [212,[362][363][364] (Figure 14e,f).…”

Section: Lc-aided-assembly and Self-assembly Of Nanomaterialsmentioning

confidence: 99%

Perspectives in Liquid-Crystal-Aided Nanotechnology and Nanoscience

2019

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The research field of liquid crystals and their applications is recently changing from being largely focused on display applications and optical shutter elements in various fields, to quite novel and diverse applications in the area of nanotechnology and nanoscience. Functional nanoparticles have recently been used to a significant extent to modify the physical properties of liquid crystals by the addition of ferroelectric and magnetic particles of different shapes, such as arbitrary and spherical, rods, wires and discs. Also, particles influencing optical properties are increasingly popular, such as quantum dots, plasmonic, semiconductors and metamaterials. The self-organization of liquid crystals is exploited to order templates and orient nanoparticles. Similarly, nanoparticles such as rods, nanotubes and graphene oxide are shown to form lyotropic liquid crystal phases in the presence of isotropic host solvents. These effects lead to a wealth of novel applications, many of which will be reviewed in this publication. the observation of chirality from achiral molecules, resulting from sterically induced packing of the bent-core mesogens [10], such as ferroelectricity or the formation of helical superstructures in the B7 phase [14]. Thermotropic LCs are commonly constituted by single organic entities or mixtures thereof, which exhibit various mesophases at different temperatures or pressures [15], illustrated in Figure 1b. As the temperature rises, a typical thermotropic LC passes through higher ordered phases, also called soft crystals, the hexatic smectic phases with positional order as well as bond orientational order, through the fluid smectic phases (SmC and SmA), which exhibit both positional and orientational order, and finally to the nematic phase (N) with purely orientational order, into the isotropic phase. The number of different phases observed depends on the chemical composition, symmetry and order of the LC molecules. About 25 different thermotropic phases are known to date, and they are still increasing in number. Appl. Sci. 2019, 9, x FOR PEER REVIEW 2 of 47 unique effects of the observation of chirality from achiral molecules, resulting from sterically induced packing of the bent-core mesogens [10], such as ferroelectricity or the formation of helical superstructures in the B7 phase [14]. Thermotropic LCs are commonly constituted by single organic entities or mixtures thereof, which exhibit various mesophases at different temperatures or pressures [15], illustrated in Figure 1b. As the temperature rises, a typical thermotropic LC passes through higher ordered phases, also called soft crystals, the hexatic smectic phases with positional order as well as bond orientational order, through the fluid smectic phases (SmC and SmA), which exhibit both positional and orientational order, and finally to the nematic phase (N) with purely orientational order, into the isotropic phase. The number of different phases observed depends on the chemical composition, symmetry and order of the LC molecules. About...

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“…Therefore, integrating SWCNTs with PET is expected to achieve an ideal antistatic packaging material with excellent comprehensive performance. However, the performance of SWCNT/PET lm is still far below the theoretical prediction due to the poor dispersion of SWCNTs in the matrix, which greatly limits the application of SWCNTs in polymer-based lms [11].…”

Section: Introductionmentioning

confidence: 97%

Enhancing the Electrical Conductivity and Strength of Pet by Single-Wall Carbon Nanotube Film Coating

Ding¹,

Jiao²,

Zhao³

et al. 2023

Preprint

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Performance-determining factors in flexible transparent conducting single-wall carbon nanotube film

Cited by 11 publications

References 20 publications

The Effect of Network Formation on the Mechanical Properties of 1D:2D Nano:Nano Composites

The Effect of Network Formation on the Mechanical Properties of 1D:2D Nano:Nano Composites

Perspectives in Liquid-Crystal-Aided Nanotechnology and Nanoscience

Enhancing the Electrical Conductivity and Strength of Pet by Single-Wall Carbon Nanotube Film Coating

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