Shape‐Controlled, Self‐Wrapped Carbon Nanotube 3D Electronics

Wang, Shuangfeng; Wang, Yanming; Tee, Benjamin C. K.; Kim, Kwanpyo; Lopez, Jeffrey; Cai, Wei; Bao, Zhenan

doi:10.1002/advs.201500103

Cited by 34 publications

(31 citation statements)

References 40 publications

(40 reference statements)

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“…Developing R2R‐compatible printing and post‐printing treatment with a wide range of substrates is key. Creating freestanding electronics in a 3D form or incorporating electronics onto 3D objects (e.g., shape‐adaptable 3D flexible electronics) is an interesting direction for flexible and stretchable electronics . Printing conductive nanomaterials will certainly assist the development of new configurations of electronic devices.…”

Section: Discussionmentioning

confidence: 99%

Printing Conductive Nanomaterials for Flexible and Stretchable Electronics: A Review of Materials, Processes, and Applications

Huang

Zhu

2019

Adv Materials Technologies

358

347

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PE has been explored for the manufacturing of flexible and stretchable electronic devices by printing functional inks containing soluble or dispersed materials, [14][15][16] which has enabled a wide variety of applications, such as transparent conductive films (TCFs), flexible energy harvesting and storage, thin film transistors (TFTs), electroluminescent devices, and wearable sensors. [17][18][19][20][21][22][23][24] The global PE market should reach $26.6 billion by 2022 from $14.0 billion in 2017 at a compound annual growth rate of 13.6%. [25] PE devices are manufactured by a variety of printing technologies. Typical printing technologies can be divided into two broad categories: noncontact patterning (or nozzle-based patterning) and contact-based patterning. The noncontact techniques include inkjet printing, electrohydrodynamic (EHD) printing, aerosol jet printing, and slot die coating, while screen printing, gravure printing, and flexographic printing are examples of the contact techniques. Each of these techniques has its own advantages and disadvantages, but they all rely on the principle of transferring inks to a substrate. Understanding the characteristics and recent advances of each printing technique is important to further the progress in PE. Moreover, to promote the lab-scale printing technologies to large-scale production process, roll-toroll (R2R) printing, which is one of the manufacturing methods to obtain large-area films with low cost and excellent durability, has drawn much attention from both industry and the research community.Nearly all of devices based on PE require conductive structures, interconnects, and contacts; therefore, highly conductive patterns, usually with high transparency and/or high resolution, fabricated by means of printing conductive materials are one of the most critical components in PE devices. Various printable conductive nanomaterials, such as metal nanomaterials (e.g., metal nanoparticles and metal nanowires) and carbon nanomaterials (e.g., graphene and carbon nanotubes (CNTs)), have been explored and used as major materials for PE. Applying printing technology to deposition of the conductive nanomaterials requires formulation of suitable inks. After depositing inks on different substrates, post-printing treatment, Printed electronics is attracting a great deal of attention in both research and commercialization as it enables fabrication of large-scale, low-cost electronic devices on a variety of substrates. Printed electronics plays a critical role infacilitating widespread flexible electronics and more recently stretchable electronics. Conductive nanomaterials, such as metal nanoparticles and nanowires, carbon nanotubes, and graphene, are promising building blocks for printed electronics. Nanomaterial-based printing technologies, formulation of printable inks, post-printing treatment, and integration of functional devices have progressed substantially in the recent years. This review summarizes basic principles and recent development of common printing technologie...

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Section: Discussionmentioning

confidence: 99%

Printing Conductive Nanomaterials for Flexible and Stretchable Electronics: A Review of Materials, Processes, and Applications

Huang

Zhu

2019

Adv Materials Technologies

358

347

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“…Therefore, the long‐term stability of the electrical interface needs further chronic histology studies . Another alternative is the fabrication of shape‐changing 3D electronics using shape‐memory polymers, which undergo shape change in response to external stimuli, such as heat or electrical field . Although shape‐memory polymers open new possibilities for future biomedical devices, they require the preparation of preprogrammed shapes to conform to unpredicted curvatures.…”

Section: Methodsmentioning

confidence: 99%

Photothermally Triggered Shape‐Adaptable 3D Flexible Electronics

Cui

Sun

et al. 2017

Adv Materials Technologies

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Effective contact between flexible electronics and soft biological tissues, which may have different surface curvatures, for medical applications has long been a challenge. Here, this study reports a strategy for preparing shape‐adaptable 3D flexible electronics by combining photothermally responsive poly(N‐isopropylacrylamide)/gold nanorods (PNIPAM@AuNRs) composite hydrogels with conventional flexible microelectrode arrays (fMEAs). The fMEAs‐functionalized composite hydrogels are shape‐adaptable and can accommodate different surface geometries. Triggered remotely in seconds by near‐infrared (NIR) light at a wavelength of 808 nm, the composite hydrogel layer is grafted on the back side of the fMEAs shrinks to induce a desirable shape transformation in the fMEAs. By patterning the responsive hydrogel layer, the fMEAs can exhibit planar‐to‐twisted structural transformations in response to an external stimulus as a result of differential shrinkage and their elastic moduli. This strategy not only enables fMEAs to modify their shape to remotely accommodate unpredictable shapes of different surfaces by irradiation with NIR but also provides multiple architectures of 3D fMEAs upon stimulation. These photothermally responsive composite‐hydrogel‐based fMEAs may provide new methods for achieving wearable and implantable devices and facilitate deeper investigations into biological systems.

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“…The progress that has been made in nanotube purification has greatly broadened their applications over the past decade. A tangible demonstration of their potential is the growing number of studies on their use in several novel applications . For instance, Shulaker et al have fabricated the first functional CNT computer which was entirely built from CNT‐based transistors.…”

Section: Transistorsmentioning

confidence: 99%

Recent Advances in Applications of Sorted Single‐Walled Carbon Nanotubes

Bati

Batmunkh

et al. 2019

Adv Funct Materials

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Single-walled carbon nanotubes (SWCNTs) exhibit outstanding properties that make them appealing in a wide range of applications. However, their properties are variable depending on the tube helicity (chirality), which has been a challenge for a long time and needs to be effectively controlled. In recent years, tremendous efforts have been made to control the electrical type/chirality of nanotubes through both direct controlled synthesis and postsynthesis separation methods. Driven by these breakthroughs, the applications of separated families of SWCNTs in various fields have emerged as a new topic of research. In this Review, an overview of recent advances in the use of highly purified and well-separated SWCNTs in a comprehensive range of applications is presented including photovoltaics, transistors, batteries, sensors, light emitters, biological/medical fields, and others. Finally, important future directions for the utilization of separated SWCNTs in these fields are provided.

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Shape‐Controlled, Self‐Wrapped Carbon Nanotube 3D Electronics

Cited by 34 publications

References 40 publications

Printing Conductive Nanomaterials for Flexible and Stretchable Electronics: A Review of Materials, Processes, and Applications

Printing Conductive Nanomaterials for Flexible and Stretchable Electronics: A Review of Materials, Processes, and Applications

Photothermally Triggered Shape‐Adaptable 3D Flexible Electronics

Recent Advances in Applications of Sorted Single‐Walled Carbon Nanotubes

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