Flash‐Induced Self‐Limited Plasmonic Welding of Silver Nanowire Network for Transparent Flexible Energy Harvester

Park, Jung Hwan; Hwang, Geon‐Tae; Kim, Shinho; Seo, Jungyun; Park, Hong-Jin; Yu, Kyoungsik; Kim, Taek‐Soo; Lee, Keon Jae

doi:10.1002/adma.201603473

Cited by 223 publications

(168 citation statements)

References 60 publications

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Section: Post‐printing Treatmentmentioning

confidence: 99%

“…Photonic sintering is a good choice for low‐temperature, high‐speed, and large‐scale sintering of AgNW or CuNW networks . Lee and coworkers reported flash‐induced plasmonic welding (FPW) of AgNWs.…”

Section: Post‐printing Treatmentmentioning

confidence: 99%

“…Localized heat with a self‐limited photothermal reaction could be generated at the junctions of NWs, resulting in ultrafast and completely welded AgNWs. The welded AgNWs showed a sheet resistance of ≈5 Ω sq −1 at a high transparency of ≈90% (Figure b) . In another example, Jiu and coworkers prepared CuNW/polyurethane (PU) conductors with a sheet resistance of 22.1 Ω sq −1 and a transmittance of 78% using photonic sintering.…”

Section: Post‐printing Treatmentmentioning

confidence: 99%

See 2 more Smart Citations

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

Huang

Zhu

2019

Adv Materials Technologies

346

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: Post‐printing Treatmentmentioning

confidence: 99%

Section: Post‐printing Treatmentmentioning

confidence: 99%

Section: Post‐printing Treatmentmentioning

confidence: 99%

See 1 more Smart Citation

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

Huang

Zhu

2019

Adv Materials Technologies

346

347

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“…Therefore, the welding of AgNWs to tighten AgNW contact is of significant importance to effectively improve the optoelectronic properties and mechanical flexibility of AgNW films. In the past decade, a variety of strategies have been devised to weld AgNWs to promote the optoelectronic properties and flexibility of AgNW films, including thermal heating, mechanical pressing, capillary‐force‐induced welding, chemical welding, and plasmonic welding . The heating and mechanical pressing processes can cause damage to the active structure of some devices .…”

Section: Introductionmentioning

confidence: 99%

Facile and Efficient Welding of Silver Nanowires Based on UVA‐Induced Nanoscale Photothermal Process for Roll‐to‐Roll Manufacturing of High‐Performance Transparent Conducting Films

Liang

Zhao

et al. 2018

Adv Materials Inter

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The continuous, large-area solution-processed production of silver nanowire (AgNW) transparent conducting films with outstanding optoelectronic and mechanical performance remains a challenge. Here, efficient welding of AgNWs is demonstrated using ultraviolet A (UVA) with the specific wavelength range from ≈320 to ≈400 nm based on a nanoscale photothermal process. The AgNW welding shows a self-terminating and self-limiting nature, and sensitivity to diameter of AgNWs. Sheet resistance of the UVA-illuminated (UVAI) AgNW films rapidly drops within 2 min without loss of transmittance. For the UVAI AgNW (30 nm in diameter) film, decrement of sheet resistance approaches three orders of magnitude (≈10 5 -10 2 Ohm sq −1 ) with original transmittance being (97%) retained, which significantly enhances its optoelectronic properties. Enhanced mechanical flexibility, electromagnetic interference (EMI) shielding effectiveness (SE), and heating performance are obtained in the UVAI AgNW films. The SE and plateau temperature of the AgNW film increase to 25 dB and 50 °C after illumination, respectively. Smart window, transparent heater, and triboelectric nanogenerator based on the UVAI AgNW film demonstrate its versatile applications in optoelectronics. Finally, the welding method is easily integrated into a roll-to-roll process to manufacture AgNW film with a low sheet resistance of 25 Ohm sq −1 and a high transmittance of 90%, and excellent flexibility.

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“…Furthermore, there is a growing need to realize cost‐effective, large‐area, and large‐scale production of flexible electronics. Therefore, instead of silicon‐ or glass‐based conventional fabrications, various printing processes without the need for multiple manufacturing steps, the use of toxic etchants and rigid carrier substrate, and with the advantage of scalability have been developed . However, despite enormous efforts, they still suffer from difficulties in improving reliability, throughput, and pattern resolution.…”

Section: Comparison Of the Characteristics Of The Mesh‐patterned Ftcementioning

confidence: 99%

Defect‐Free, Highly Uniform Washable Transparent Electrodes Induced by Selective Light Irradiation

Zhong

Woo

Kim

et al. 2018

Small

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A simple route to fabricate defect-free Ag-nanoparticle-carbon-nanotube composite-based high-resolution mesh flexible transparent conducting electrodes (FTCEs) is explored. In the selective photonic sintering-based patterning process, a highly soft rubber or thin plastic substrate is utilized to achieve close and uniform contact between the composite layer and photomask, with which uniform light irradiation can be obtained with diminished light diffraction. This well-controlled process results in developing a fine and uniform mesh pattern (≈12 μm). The mesh patternability is confirmed to be dependent on heat distribution in the selectively light-irradiated film and the pattern design for FTCE could be adopted for more precise patterns with desired performance. Moreover, using a very thin substrate could allow the mesh to be positioned closer to the strain-free neutral mechanical plane. Due to strong interfacial adhesion between the mesh pattern and substrate, the mesh FTCE could tolerate severe mechanical deformation without performance degradation. It is demonstrated that a transparent heater with fine mesh patterns on thin substrate can maintain stability after 100 repeated washing test cycles in which a variety of stress situations occurring in combination. The presented highly durable FTCE and simple fabrication processes may be widely adoptable for various flexible, large-area, and wearable optoelectronic devices.

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Flash‐Induced Self‐Limited Plasmonic Welding of Silver Nanowire Network for Transparent Flexible Energy Harvester

Cited by 223 publications

References 60 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

Facile and Efficient Welding of Silver Nanowires Based on UVA‐Induced Nanoscale Photothermal Process for Roll‐to‐Roll Manufacturing of High‐Performance Transparent Conducting Films

Defect‐Free, Highly Uniform Washable Transparent Electrodes Induced by Selective Light Irradiation

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