Highly conductive and transparent carbon nanotube composite thin films deposited on polyethylene terephthalate solution dipping

Xiao, Gaozhi; Tao, Ye; Lü, Jianping; Zhang, Zhiyi

doi:10.1016/j.tsf.2009.11.021

Cited by 45 publications

(22 citation statements)

References 20 publications

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“…However, once the percolation network has been formed, CNT agglomeration increases the surface contact among CNTs (CNTto-CNT junctions) and hence facilitates the electrons flow through the formed CNT network. Recent studies suggest that the electrical conductivity of CNT polymer composites can be improved by increasing the number of CNT-CNT junctions per unit area, which will improve the transport of free carriers between the nanotubes [28,29]. For higher CNT loadings the conductive network is densely packed and no further increases in electrical conductivity are expected to be caused by this mechanism.…”

Section: Resultsmentioning

confidence: 99%

Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films

Aguilar

Bautista-Quijano

Avilés³

2010

Express Polym. Lett.

182

110

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Abstract. Electrical conductivity of 150-200 μm thick polysulfone films loaded with 0.05-0.75% w/w multiwall carbon nanotubes was systematically investigated for two types of dispersion states, uniformly dispersed and agglomerated at the micro-scale. The percolation threshold was found at 0.11% and 0.068% w/w for the uniformly dispersed and agglomerated films, respectively. Overall, the conductivity of the films with agglomerated nanotubes was higher than that of the uniformly dispersed ones, with marked differences of 2 to 4 orders of magnitude for carbon nanotubes loadings in the upper vicinity of the percolation threshold (0.1-0.3% w/w). The increased conductivity of the agglomerated state is explained by the increased nanotube-to-nanotube contact after the percolating network has formed, which facilitates electron transfer.

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Section: Resultsmentioning

confidence: 99%

Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films

Aguilar

Bautista-Quijano

Avilés³

2010

Express Polym. Lett.

182

110

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“…In the case of metals, gold (Au), silver (Ag), and copper (Cu) in the thin film state are used as conductive matters, because the thick films are opaque by high reflection. Synthetic metals of carbon nanotubes [6] and poly(thiophene) derivatives [7] are used as other conductive matters.…”

Section: Introductionmentioning

confidence: 99%

Semitransparent Conductive Thin Porous Au Films on a Thiol-containing Primer Layer formed from Au Nanoparticle Ink

Nagase

Kawashima

Nakagawa

2010

J. Photopol. Sci. Technol.

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We demonstrated that thin porous Au films showing semi-transparency in the region of visible light and electric conductivity were prepared by spincoating an -terpineol ink containing decanethiol-passivated Au nanoparticles onto silica and silicon substrates modified with 3-mercaptopropyltriethoxysilane and subsequent annealing for sintering the Au nanoparticles. A thin film of the -terpineol ink was transformed to droplets on unmodified silica and silicon substrates by dewetting after spincoating, while it was changed to a thin porous film on the modified substrates by suppressing a progress of dewetting. The porous structure remained after sintering at 300 o C, resulting in the formation of semitransparent and conductive thin porous Au films with a transmittance of about 40 % in the visible light region and a surface resistivity of 10 -2 -10 -3 /square. We also demonstrated that the thin porous Au film was available as a wet etching mask for silicon microprocessing using a hydrogen fluoride (HF) aqueous solution.

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“…For instance, the hybrid electrode of S 1 , which was fabricated by coating the CNTs (C 3 ) with the PEDOT:PSS film at the spinning speed of 1500 rpm, had an R □ of approximately 298 Ω/□ and a T vis of 87.52%, whereas the CNTs (C 3 ) showed a much higher R □ (959.3 Ω/□) and a slightly higher T vis (88.80%). This was because the PEDOT:PSS particles filled up the voids between the tubes in the CNTs as shown in Figure 10(e) and thereby formed a conduction bridge for electron transfer, inducing a decrease in the tube-tube junction resistance and the percolation threshold, eventually enhancing the conductivity of the hybrid electrodes [31].…”

Section: Pedot:pss Coating Via Spin Coatingmentioning

confidence: 99%

Applications of Carbon Nanotubes to Flexible Transparent Conductive Electrodes

Kim¹,

Park²

2018

Carbon Nanotubes - Recent Progress

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Transparent conductive electrodes (TCEs) have attracted great interest because of their wide range of applications in solar cells, liquid crystal displays (LCDs), organic lightemitting diodes (OLEDs), and touch screen panels (TSPs). Indium-tin-oxide (ITO) thin films as TCEs possess exceptional optoelectronic properties, but they have several disadvantages such as a brittle nature due to their low fracture strain and lack of flexibility, a high processing temperature that damages the flexible substrates, low adhesion to polymeric materials, and relative rarity on Earth, which makes their price unstable. This has motivated several research studies of late for developing alternative materials to replace ITO such as metal meshes, metal nanowires, conductive polymers, graphene, and carbon nanotubes (CNTs). Out of the abovementioned candidates, CNTs have advantages in chemical stability, thermal conductivity, mechanical strength, and flexibility. However, there are still several problems yet to be solved for achieving CNT-based flexible TCEs with excellent characteristics and high stability. In this chapter, the properties of CNTs and their applications especially for flexible TCEs are presented, including the preparation details of CNTs based on solution processes, the surface modification of flexible substrates, and the various types of hybrid TCEs based on CNTs.

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Highly conductive and transparent carbon nanotube composite thin films deposited on polyethylene terephthalate solution dipping

Cited by 45 publications

References 20 publications

Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films

Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films

Semitransparent Conductive Thin Porous Au Films on a Thiol-containing Primer Layer formed from Au Nanoparticle Ink

Applications of Carbon Nanotubes to Flexible Transparent Conductive Electrodes

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