A Flexible and Robust Transparent Conducting Electrode Platform Using an Electroplated Silver Grid/Surface-Embedded Silver Nanowire Hybrid Structure

Jang, Junho; Im, Hyeon‐Gyun; Jin, Jungho; Lee, Jaemin; Lee, Jung‐Yong; Bae, Byung Seong

doi:10.1021/acsami.6b07140

Cited by 58 publications

(51 citation statements)

References 40 publications

(106 reference statements)

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“…Previously existing indium‐free, all‐solution processed TCEs include metal nanowires, chemically derived graphene oxide, and lithography‐processed metallic networks . Among these, the latter exhibits the best performance, but its production is costly and not generally scalable.…”

Section: Introductionmentioning

confidence: 99%

All‐Solution‐Processed, Scalable, Self‐Cracking Ag Network Transparent Conductor

Yang¹,

Merlo²,

Kong³

et al. 2017

Physica Status Solidi (a)

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A scalable and a fully solution-based method is developed to produce environmentally stable Ag micro/nanowire networks for transparent conductors. By applying a self-cracking, water-soluble acrylate copolymer film as a photoresist mask, the need for formal photomask fabrication and costly vacuum and lithographic facilities is obviated. Also, an increase in adhesion and a decrease in roughness of the metal networks is demonstrated by depositing metal into the regions created by the glass etch step. As a result, the networks can potentially be inexpensively scaled to large areas, as well as be flexible after removal from the substrate. They also exhibit record values of figures of merit that have been employed in the literature, offering a possibly excellent replacement for ITO.

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Section: Introductionmentioning

confidence: 99%

All‐Solution‐Processed, Scalable, Self‐Cracking Ag Network Transparent Conductor

Yang¹,

Merlo²,

Kong³

et al. 2017

Physica Status Solidi (a)

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“…It is also considered as a next‐generation transparent electrode as an alternative material for ITO because of its excellent optical and full‐function performance. However, Ag NWs TCE has several disadvantages, such as surface roughness, haziness, low adhesion, and thermal/chemical instability . In particular, contact resistance at wire‐to‐wire junctions is affected seriously by process of surface‐treatment.…”

Section: Introductionmentioning

confidence: 99%

Microwave welding of silver nanowires for highly transparent conductive electrodes

Jung

Kim

Sung

et al. 2017

Phys. Status Solidi A

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Silver nanowires (Ag NWs) can be used in future conductive transparent electrodes to replace indium tin oxide (ITO) thin films. Welding between Ag NWs is required to achieve lower electrical resistance, and an appropriate heating mechanism. In this study, microwave‐assisted welding was introduced in order to simultaneously improve the transmittance and electrical conductivity of Ag NWs, through a simple, selective, and rapid process. This method includes only two steps. First, Ag NWs dispersed in a solvent were coated onto polymer substrates by spin coating. The Ag NW‐coated substrates were exposed to microwave radiation. Next, the resulting optical transmittances and electrical conductivities are compared between the samples. Ag NWs electrode showed high electrical conductivity with a low sheet resistance of 20 Ω sq−1 at 87% transmittance (at 550 nm). Bending tests were also performed to examine the suitability of the welded Ag NWs for flexible substrates. We found that the transmittance and conductivity were preserved after repeated bending tests. Consequently, the sheet resistance was reduced by 40% using microwave heating, and these welded Ag NWs had good mechanical strength even after bending. These highly flexible and transparent electrodes can be mounted onto non‐planar surfaces for use in various future flexible electronics.

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“…They are also superior to those that weld AgNWs by solution methods (mechanical pressing: up triangles, F TCE = 186, ϕ = 0.012; thermal heating: left triangles, F TCE = 223, ϕ = 0.02) and even lithography made nanogrids (right triangles, F TCE = 164, ϕ = 0.016). The FoM of our MF samples (red squares, F TCE up to 2016, ϕ = 0.153) is also higher than that of a micro/nanowires process made by photolithography (diamonds, F TCE = 579, ϕ = 0.026) . For reference, commercial ITO (blue star) has an F TCE = 350 and ϕ = 0.03.…”

mentioning

confidence: 73%

All‐Solution‐Processed Micro/Nanowires with Electroplate Welding as Transparent Conducting Electrodes

Yang

Merlo

D’Imperio

et al. 2019

Physica Rapid Research Ltrs

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An all‐solution‐processed transparent conductive electrode with sheet resistance one order of magnitude smaller than conventional nanowire‐based transparent conductors has been developed. This is achieved by integrating all‐solution produced microwires with a nanowire solution and electroplating and electrowelding. Advantages of the resulting transparent conductor are indium‐free, vacuum‐free, and lithographic‐facility‐free, and metallic‐mask‐free, with small domain size (≈10 μm2), low sheet resistance (Rs < 1 Ω □−1), high optical transmittance (T > 80%), mechanical flexibility, and scalability, thus making it an excellent replacement for ITO.

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A Flexible and Robust Transparent Conducting Electrode Platform Using an Electroplated Silver Grid/Surface-Embedded Silver Nanowire Hybrid Structure

Cited by 58 publications

References 40 publications

All‐Solution‐Processed, Scalable, Self‐Cracking Ag Network Transparent Conductor

All‐Solution‐Processed, Scalable, Self‐Cracking Ag Network Transparent Conductor

Microwave welding of silver nanowires for highly transparent conductive electrodes

All‐Solution‐Processed Micro/Nanowires with Electroplate Welding as Transparent Conducting Electrodes

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