Novel Hybrid Conductor of Irregularly Patterned Graphene Mesh and Silver Nanowire Networks

Sohn, Hiesang; Shin, Weon Ho; Seok, Dohyeong; Lee, Taek; Park, Chulhwan; Oh, Jong‐Min; Kim, Se Yun; Seubsai, Anusorn

doi:10.3390/mi11060578

Cited by 3 publications

(2 citation statements)

References 40 publications

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“…Another interesting approach to increasing the electrical conductivity of graphene inks is to decorate graphene nanosheets with various metal nanostructures. Graphene nanosheets doped with Ag nanoparticles have been proven to be a promising material due to their potential applications in many fields, including preparing a hybrid ink and thus taking full advantage of these two materials [7,[20][21][22][23]. Recently, a hybrid nanocomposite derived from the combination of silver nanowires and f -rGO has been formed for the development of stable gravure printing inks with enhanced conductivity, which is promising for electronic applications [24].…”

Section: Introductionmentioning

confidence: 99%

Conductivity Enhancement of Graphene and Graphene Derivatives by Silver Nanoparticles

et al. 2023

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In this article, a facile way for the doping of graphene and graphene derivatives with silver nanoparticles at different Ag ratios is described. Ag nanoparticles were formed directly on the surface of two different graphene substrates dispersed in dimethylformamide by the reduction of Ag cations with NaBH4. A few layered graphene nanosheets (FLG) produced from graphite and reduced graphene oxide functionalized with amino arylsulfonates (f-rGO) were used as substrates. The final graphene/Ag nanoparticle hybrid in the form of solid, dense spots showed enhanced electrical conductivity, which can be attributed to the formation of conductive interconnections between the 2D nanosheets. Importantly, electrical conductivities of 20 and 167 103 S m−1 were measured for the hybrids of f-rGO and FLG, respectively, with the higher Ag percentage without an annealing process. A representative hybrid f-rGO with Ag nanoparticles was used for the development of a highly conductive water-based gravure ink with excellent printing properties.

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Section: Introductionmentioning

confidence: 99%

Conductivity Enhancement of Graphene and Graphene Derivatives by Silver Nanoparticles

et al. 2023

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“…In addition, the conductivity of p-type double-doped graphene was enhanced, so that the hybrid system formed a co-permeation network, and AgNWs formed a secondary conductive path at the grain boundary of polycrystalline graphene. Sohn et al [90] firstly used a chemical etching agent (HNO 3 ) to prepare graphene mesh with irregular patterns by using the bottom etching method. Then, the hybrid conductor of AgNWs networks and graphene grid with irregular pattern have an enhanced optical transmittance (−98.5%) and electromechanical stability (∆R/R 0 : −42.4% at 200,000 cycles) under 6.7% strain.…”

Section: Transparent Film Heatermentioning

confidence: 99%

Syntheses of Silver Nanowires Ink and Printable Flexible Transparent Conductive Film: A Review

Zhou

Wang

et al. 2020

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Nowadays, flexible transparent conductive film (FTCF) is one of the important components of many flexible electronic devices. Due to comprehensive performances on optoelectronics, FTCF based on silver nanowires (AgNWs) networks have received great attention and are expected to be a new generation of transparent conductive film materials. Due to its simple process, printed electronic technology is now an important technology for the rapid production of low-cost and high-quality flexible electronic devices. AgNWs-based FTCF fabricated by using printed electronic technology is considered to be the most promising process. Here, the preparation and performance of AgNW ink are introduced. The current printing technologies are described, including gravure printing, screen printing and inkjet printing. In addition, the latest methods to improve the conductivity, adhesion, and stability of AgNWs-based FTCF are introduced. Finally, the applications of AgNWs-based FTCF in solar cells, transparent film heaters, optoelectronic devices, touch panel, and sensors are introduced in detail. Therefore, combining various printing technologies with AgNWs ink may provide more opportunities for the development of flexible electronic devices in the future.

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Silver Nanowires Network Film with Enhanced Crystallinity toward Mechano‐Electrically Sustainable Flexible‐Electrode

Kim

et al. 2020

Adv Materials Technologies

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This report presents the improved mechano‐electric sustainability of Ag NWs network with enhanced crystallinity (c‐Ag NW) based on the systematic bending‐fatigue study of Ag NWs network and its application toward electronic device built on patterned electrode. First, the mechano‐electric stability of Ag NWs network film is found to be highly associated with their crystalline structural deformation, i.e., defects or dislocation density by externally applied strains. Based on this result, c‐Ag NWs are prepared by the solution based thermal annealing at 70 °C and integrated into c‐Ag NWs network film. By analyzing crystalline structures and nano‐morphologies, as‐formed c‐Ag NW network film exhibits enhanced crystallinity and reduced dislocation density. In the bending fatigue tests under application of strain (6.7%, bending radius: 1 mm) during the 200 000 cycles, c‐Ag NWs network film shows highly reduced (>500%) resistance change (ΔR/ΔRo: 45%) than that of pristine Ag NW network film (ΔR/ΔRo: 241%). In the application of c‐Ag NW network toward patterned electrode, the electrode demonstrates the comparable electrical property (9.41 kΩ) to that of ITO based one (8.01 kΩ) despite the reduced number of nanowires in 6 µm neck diamond electrode pattern.

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Novel Hybrid Conductor of Irregularly Patterned Graphene Mesh and Silver Nanowire Networks

Cited by 3 publications

References 40 publications

Conductivity Enhancement of Graphene and Graphene Derivatives by Silver Nanoparticles

Conductivity Enhancement of Graphene and Graphene Derivatives by Silver Nanoparticles

Syntheses of Silver Nanowires Ink and Printable Flexible Transparent Conductive Film: A Review

Silver Nanowires Network Film with Enhanced Crystallinity toward Mechano‐Electrically Sustainable Flexible‐Electrode

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