A Review of Conductive Metal Nanomaterials as Conductive, Transparent, and Flexible Coatings, Thin Films, and Conductive Fillers: Different Deposition Methods and Applications

Naghdi, Samira; Rhee, Kyong Yop; Hui, David; Park, Soo‐Jin

doi:10.3390/coatings8080278

Cited by 201 publications

(121 citation statements)

References 98 publications

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“…But, unlike silver, gold provides excellent resistance to corrosion and oxidation, making it a good candidate for biosensors. Its limitations appear when synthesizing large quantities of long, thick AuNW, and when fabricating thin films that require deposition at high temperatures and under a high vacuum state 15. These limitations, along with the cost and scarcity of gold, tend to focus the research on flexible TCE.…”

Section: Materials For Tscs Based On Nanomaterialsmentioning

confidence: 99%

“…One way to classify these fabrication techniques is to distinguish between layered composites and uniformly mixed composites. Layered composites often involve techniques to deposit thin layers of conductive materials onto stretchable substrate surfaces, whereas, uniformly mixed structures are characterized by randomly dispersed conductive nanomaterials in the stretchable polymer matrix 15. Due to the difficulties in obtaining a transparent and conductive uniformly mixed composite, layered nanomaterials represent the best option for meeting the three requirements for these new composite materials.…”

Section: Introductionmentioning

confidence: 99%

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Recent Progress in Transparent Conductors Based on Nanomaterials: Advancements and Challenges

McLellan

Yoon

Leung

et al. 2020

Adv Materials Technologies

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Transparent conductors are essential to the fabrication of transparent electronics such as touch panels and displays, making them crucial elements in the current electronics industry. With the rapid surge of interest in stretchable electronics, transparent conductors now are also required to be stretchable. Therefore, new approaches to developing transparent and stretchable conductors (TSCs) are needed to replace conventional rigid transparent conductors. Constructing nanocomposites of various nanomaterials and substrates is one of the most promising approaches to developing TSCs due to the nanomaterials' geometrical, mechanical, electrical, and optical properties. Herein, the progress of carbon‐ and metal‐based nanomaterials and conductive polymers composites are investigated and categorization of TSCs based on types of nanomaterials and fabrication techniques are discussed. Lastly, a review of the demonstrated state‐of‐the‐art applications of TSCs and a perspective about the future of TSCs based on nanomaterials are provided.

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Section: Materials For Tscs Based On Nanomaterialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Progress in Transparent Conductors Based on Nanomaterials: Advancements and Challenges

McLellan

Yoon

Leung

et al. 2020

Adv Materials Technologies

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“…Spin coating is a popular and convenient solution-based assembly method for the uniform thin film preparation [96]. In this approach, Cu inks are spread on a rotating substrate under the centrifugal force and form a solid thin film with the evaporation of the solvent.…”

Section: Spin Coatingmentioning

confidence: 99%

Copper nanomaterials and assemblies for soft electronics

Yang

Zhu

2019

Sci. China Mater.

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Soft electronics that can simultaneously offer electronic functions and the capability to be deformed into arbitrary shapes are becoming increasingly important for wearable and bio-implanted applications. The past decade has witnessed tremendous progress in this field with a myriad of achievements in the preparation of soft electronic conductors, semiconductors, and dielectrics. Among these materials, copper-based soft electronic materials have attracted considerable attention for their use in flexible or stretchable electrodes or interconnecting circuits due to their low cost and abundance with excellent optical, electrical and mechanical properties. In this review, we summarize the recent progress on these materials with the detailed discussions of the synthesis of copper nanomaterials, approaches for their assemblies, strategies to resist the ambient corrosion, and their applications in various fields including flexible electrodes, sensors, and other soft devices. We conclude our discussions with perspectives on the remaining challenges to make copper soft conductors available for more widespread applications.

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“…CNT dispersions were then centrifuged at 4000 rpm for 5 min to discard the nonstabilized CNTs. The assembly of PEDOT nanoparticles and CNT layers was carried out by using the layer-by-layer (LbL) technique via dip coating on a pre-treated polyethylene terephthalate (PET) substrate to improve film adhesion [26]. PET substrates were immersed in a cationic PEDOT: PDADMAC suspension for 5 min, followed by 3 washing steps of dipping in water, immersion in the anionic CNT:DOC suspension for 5 min, and eventually 3 further steps of washing in water.…”

Section: Film Preparationmentioning

confidence: 99%

Poly(3,4-Ethylenedioxythiophene) Nanoparticles as Building Blocks for Hybrid Thermoelectric Flexible Films

Serrano-Claumarchirant

Culebras

Cantarero

et al. 2019

Coatings

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Hybrid thermoelectric flexible films based on poly(3,4-ethylenedioxythiophene) (PEDOT) nanoparticles and carbon nanotubes were prepared by using layer-by-layer (LbL) assembly. The employed PEDOT nanoparticles were synthesized by oxidative miniemulsion polymerization by using iron(III) p-toluenesulfonate hexahydrate (FeTos) as an oxidant and poly(diallyldimethylammonium chloride) (PDADMAC) as stabilizer. Sodium deoxycholate (DOC) was used as a stabilizer to prepare the aqueous dispersions of the carbon nanotubes. Hybrid thermoelectric films were finally prepared with different monomer/oxidant molar ratios and different types of carbon nanotubes, aiming to maximize the power factor (PF). The use of single-wall (SWCNT), double-wall (DWCNT), and multiwall (MWCNT) carbon nanotubes was compared. The Seebeck coefficient was measured by applying a temperature difference between the ends of the film and the electrical conductivity was measured by the Van der Pauw method. The best hybrid film in this study exhibited a PF of 72 µW m −1 K −2 . These films are prepared from aqueous dispersions with relatively low-cost materials and, due to lightweight and flexible properties, they are potentially good candidates to recover waste heat in wearable electronic applications.Coatings 2020, 10, 22 2 of 12 polymer nanocomposites and hybrids can be a real alternative to typical inorganic semiconductors based, for instance, on Bi 2 Te 3 [3][4][5]. Conducting polymers based on poly(3, 4-ethylenedioxythiophene) (PEDOT) have shown efficient values of ZT in the range from 0.1 to 0.4 [1,6,7]. On the other hand, carbon nanotubes (CNTs) have been shown to be good nanofillers to develop high efficient thermoelectric nanocomposites, reaching very high values of power factor (PF), defined as PF = S 2 σ [8-10]. It is known that the electrical properties of conducting polymers depend significantly on the arrangement of the polymer chains [11][12][13]. Since CNTs are rolled graphene sheets, π-π interactions can occur between the graphene ring of the carbon nanotube and the aromatic ring or double bonds of the conducting polymer, which can act as a template for an optimal ordering and, thus, produce a synergistic effect on thermoelectric properties [14]. In addition, the combination of conducting polymer and inorganic semiconductor-based on Te and Bi 2 Te 3 has demonstrated an enormous potential in terms of thermoelectric efficiency, being in some of the cases even higher than for the starting materials [15,16].Multilayered materials based on conducting polymers and carbon nanostructures (CNTs and graphene) stand out over the rest because their thermoelectric efficiency can be higher than bulk Bi 2 Te 3 . For example, very high power factors have been obtained for multilayered thin films prepared using layer-by-layer (LbL) assembly and based on polyaniline (PANI), double-walled carbon nanotubes (DWCNT) and graphene (1750 µW m −1 K −2 ), or PANI, DWCNT, poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonate) (PEDOT:PSS), and graphene (2710 µW m −1 K...

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A Review of Conductive Metal Nanomaterials as Conductive, Transparent, and Flexible Coatings, Thin Films, and Conductive Fillers: Different Deposition Methods and Applications

Cited by 201 publications

References 98 publications

Recent Progress in Transparent Conductors Based on Nanomaterials: Advancements and Challenges

Recent Progress in Transparent Conductors Based on Nanomaterials: Advancements and Challenges

Copper nanomaterials and assemblies for soft electronics

Poly(3,4-Ethylenedioxythiophene) Nanoparticles as Building Blocks for Hybrid Thermoelectric Flexible Films

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