Ordered and Highly Conductive Carbon Nanotube Nano‐Networks in a Semiconducting Polymer Film by Solution Processing

Boulanger, Nicolas; Barbero, David R.

doi:10.1002/aelm.201400030

Cited by 3 publications

(1 citation statement)

References 44 publications

(100 reference statements)

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“…The mechanism for nanotube formation is based on the aniline nucleating a stacking process, which is stabilized by π–π interactions between phenazine structures [20]. Due to the strong intermolecular interaction between polymer chains, PANI NT reveals high conductivity relative to bulk polymer films [21,22,23]. Martin et al confirmed experimentally that the conductivity for randomly distributed PANI NT depends on the nanotube size, and is six times higher than that of the macromolecular polymer [7].…”

Section: Introductionmentioning

confidence: 99%

Nanoforest: Polyaniline Nanotubes Modified with Carbon Nano-Onions as a Nanocomposite Material for Easy-to-Miniaturize High-Performance Solid-State Supercapacitors

et al. 2018

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This article describes a facile low-cost synthesis of polyaniline nanotube (PANINT)–carbon nano-onion (CNO) composites for solid-state supercapacitors. Scanning electron microscopic (SEM) analyses indicate a uniform and ordered composition for the conducting polymer nanotubes immobilized on a thin gold film. The obtained nanocomposites exhibit a brush-like architecture with a specific capacitance of 946 F g−1 at a scan rate of 1 mV s−1. In addition, the nanocomposites offer high conductivity and a porous and well-developed surface area. The PANINT–CNO nanocomposites were tested as electrodes with high potential and long-term stability for use in easy-to-miniaturize high-performance supercapacitor devices.

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Section: Introductionmentioning

confidence: 99%

Nanoforest: Polyaniline Nanotubes Modified with Carbon Nano-Onions as a Nanocomposite Material for Easy-to-Miniaturize High-Performance Solid-State Supercapacitors

et al. 2018

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Functional Single‐Walled Carbon Nanotubes and Nanoengineered Networks for Organic‐ and Perovskite‐Solar‐Cell Applications

Barbero

Stranks

2016

Advanced Materials

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Carbon nanotubes have a variety of remarkable electronic and mechanical properties that, in principle, lend them to promising optoelectronic applications. However, the field has been plagued by heterogeneity in the distributions of synthesized tubes and uncontrolled bundling, both of which have prevented nanotubes from reaching their full potential. Here, a variety of recently demonstrated solution-processing avenues is presented, which may combat these challenges through manipulation of nanoscale structures. Recent advances in polymer-wrapping of single-walled carbon nanotubes (SWNTs) are shown, along with how the resulting nanostructures can selectively disperse tubes while also exploiting the favorable properties of the polymer, such as light-harvesting ability. New methods to controllably form nanoengineered SWNT networks with controlled nanotube placement are discussed. These nanoengineered networks decrease bundling, lower the percolation threshold, and enable a strong enhancement in charge conductivity compared to random networks, making them potentially attractive for optoelectronic applications. Finally, SWNT applications, to date, in organic and perovskite photovoltaics are reviewed, and insights as to how the aforementioned recent advancements can lead to improved device performance provided.

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Flexible Poly(Amide‐Imide)‐Carbon Black Based Microheater with High‐Temperature Capability and an Extremely Low Temperature Coefficient

Liparoti

Landi

Sorrentino

et al. 2016

Adv Elect Materials

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heating element comprises a conductive polymer material. Polymer loaded with conducting fi llers such as carbon-based materials and metal fi bers have been extensively investigated owing to their lightweight and good processability. [1][2][3][4] They are ideal for many smart applications, such as patternable microheaters, temperature sensors, thermoelectric devices, water heaters, and fl exible deicing units. [5][6][7] However, up to now low values of dielectric strength, dimensional stability, thermal insulation, electrical power density, and maximum operating temperature have limited their applications in fl exible heater manufacturing. [ 8,9 ] So far, metal-based microheaters on fl exible foils are the dominant approach in the fi eld. The substitution of conventional microheaters with polymer-based microheaters can expand their applications to extreme environments or for cases, where space and weight allowances are limited. Several approaches related to their formulation and processing have been proposed to overcome the limitations of purely polymer-based solutions. Nanosized particles have received great attention due to their electrical cycle stability and their potential in processing thin fi lms with uniform morphology. In this case, a number of new problems, such as signifi cant particle agglomeration, high interface fraction, and porosity in polymer matrices need to be resolved during nanocomposite production. Probably, the most important issue is the fi ller distribution within the matrix, which depends strongly on the right combination of processing conditions (pressure, temperature, humidity, mixing, etc.), formulation (fi ller content, properties of the matrix), and particle-matrix interactions. [ 10 ] Controlling the impact of all these parameters allows to fi nd the right balance between dispersion and aggregation phenomena in order to prevent either the formation of microagglomerates or of conductive pathway breakage. Generally, it is preferable to decrease the fi ller content value at which the composite becomes conductive (percolation threshold). This is generally achieved by partial segregation of the fi ller or by using conductive nanometric fi llers with high aspect ratio. Among these, nanocarbon materials such as carbon nanotubes (CNTs), graphene, and carbon nanofi bers are used to obtain highly conductive polymer composites with a very low Flexible poly(amide-imide)-carbon black (PAI-CB) composite fi lms, to be applied as high performance microheater foil, have been prepared with a solution/casting technique. The CB dispersion has been carefully controlled in order to improve the thermal and electrical properties of the resulting composites. Morphology and structure of the PAI-CB composite fi lms have been characterized by optical microscopy, atomic force microscopy and FTIR spectroscopy. The effect of the CB dispersion and its interaction with the polymer chains on the thermal and mechanical properties of the composite fi lms have been investigated by using differential scanning calorimetr...

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Ordered and Highly Conductive Carbon Nanotube Nano‐Networks in a Semiconducting Polymer Film by Solution Processing

Cited by 3 publications

References 44 publications

Nanoforest: Polyaniline Nanotubes Modified with Carbon Nano-Onions as a Nanocomposite Material for Easy-to-Miniaturize High-Performance Solid-State Supercapacitors

Nanoforest: Polyaniline Nanotubes Modified with Carbon Nano-Onions as a Nanocomposite Material for Easy-to-Miniaturize High-Performance Solid-State Supercapacitors

Functional Single‐Walled Carbon Nanotubes and Nanoengineered Networks for Organic‐ and Perovskite‐Solar‐Cell Applications

Flexible Poly(Amide‐Imide)‐Carbon Black Based Microheater with High‐Temperature Capability and an Extremely Low Temperature Coefficient

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