An Optically Flat Conductive Outcoupler Using Core/Shell Ag/ZnO Nanochurros

Yoo, Young Zo; Na, Jin Young; Choi, Y. S.; Lim, Young‐Hun; Kim, Ji Hyun; Kim, Young Bin; Kim, Jae Ho; Kim, Sun Kyung; Seong, Tae‐Yeon

doi:10.1002/smll.201800056

Cited by 9 publications

(6 citation statements)

References 55 publications

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“…To further demonstrate the stabilizing and destabilizing effect, the thermal stabilities of AgNWs different average diameters (17,45, 120 nm) were investigated by using the ODT and MBI decoration. Figure 5e displays the variation of in situ resistance of the raw AgNWs, ODT, and MBI-decorated AgNWs subjected to an increased annealing temperature.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Comprehensive Stability Improvement of Silver Nanowire Networks via Self-Assembled Mercapto Inhibitors

Liu

Kong

et al. 2018

ACS Appl. Mater. Interfaces

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Instability of silver nanowire (AgNW) has been regarded as a major obstacle to its practical applications in optoelectrical devices as transparent electrodes. Physical barrier layers such as polymer, metal, and graphene have been generally employed to improve the stability of AgNW in previous study. Herein, we first report self-assembled organothiols as an inhibitor for AgNW to achieve an overall enhancement in antioxidation, antisulfidation, thermal stability, and anti-electromigration. The self-assembled monolayers (SAMs) of phenyl azoles, methoxy silane, and methyl alkane were formed on the surface of AgNW via Ag−S covalent bond as barrier layers which provided protective effects against corrosives (e.g., O 2 , H 2 S). In particular, the decoration of 2-mercaptobenzimidazole (MBI) offered the best resistance to H 2 S and excellent stability under a high-temperature and high-humidity environment (85 °C and 85 RH %) for 4 months. Moreover, different SAMs exhibited a stabilizing or destabilizing effect on Plateau−Rayleigh instability of AgNW, which realized the tunability of degradation temperature of AgNWs, for example, increasing by ≥100 °C with MBI SAM or decreasing by ∼50 °C with octadecanethiol SAM compared with pristine AgNWs. Notably, the MBIdecorated AgNWs could survive at 400 °C which is by far the highest bearing temperature for solution-processed AgNW film. As a result, a transparent heater made of the MBI-AgNWs exhibited superior heating characteristics (higher working temperature and durability), as compared with the pristine AgNW-based heater. Our findings on the organothiols decoration not only provide a new paradigm in overall stability improvement of NW of noble metals but also show the potential in morphology controllability of metal NW.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Comprehensive Stability Improvement of Silver Nanowire Networks via Self-Assembled Mercapto Inhibitors

Liu

Kong

et al. 2018

ACS Appl. Mater. Interfaces

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“…Several AgNW transparent electrode passivation materials with many of the above properties, most commonly conductive polymers, graphene, and thin metal oxide layers, have been studied [19,20,21,22,23]. The performance of PEDOT:PSS (poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)) as a passivation material is insufficient, with the sheet resistance of the silver nanowire electrode increasing nearly 9% in less than five days of exposure to air [24,25].…”

Section: Introductionmentioning

confidence: 99%

Increasing Silver Nanowire Network Stability through Small Molecule Passivation

et al. 2019

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Silver nanowire (AgNW) transparent electrodes show promise as an alternative to indium tin oxide (ITO). However, these nanowire electrodes degrade in air, leading to significant resistance increases. We show that passivating the nanowire surfaces with small organic molecules of 11-mercaptoundecanoic acid (MUA) does not affect electrode transparency contrary to typical passivation films, and is inexpensive and simple to deposit. The sheet resistance of a 32 nm diameter silver nanowire network coated with MUA increases by only 12% over 120 days when exposed to atmospheric conditions but kept in the dark. The increase is larger when exposed to daylight (588%), but is still nearly two orders of magnitude lower than the resistance increase of unpassivated networks. The difference between the experiments performed under daylight versus the dark exemplifies the importance of testing passivation materials under light exposure.

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“…[ 56,78 ] In contrast, the spin‐coating and bar‐coating methods generally coat a mixture of fillers and liquid polymer matrix to the substrate film and solidify it. [ 59,79,80 ] In addition, spin coating is also commonly used to encapsulate layered conductive films [8b] . As the name implies, the spray‐coating method sprays the filler solution on the substrate to form a thin conductive coating.…”

Section: Fabricationmentioning

confidence: 99%

Hybrid‐Filler Stretchable Conductive Composites: From Fabrication to Application

et al. 2021

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Stretchable conductive composites (SCCs) are generally elastomer matrices filled with conductive fillers. They combine the conductivity of metals and carbon materials with the flexibility of polymers, which are attractive properties for applications such as stretchable electronics, wearable devices, and flexible sensors. Most conventional conductive composites that are filled with only one type of conductive filler face issues in mechanical and electrical properties. Recently, some studies introduced secondary fillers to create hybrid‐filler SCCs to solve these problems. The secondary fillers produce a synergistic effect with the primary fillers to enhance the electrical conductivity of the composites. They also improve the thermal conductivity and mechanical properties or impart composites with special functions like catalysis and self‐healing. Herein, the fabrication methods, stretchability enhancement strategies, and piezoresistivity of SCCs are analyzed, and their latest applications in stretchable electronics are introduced. Finally, the challenges and prospects of their development are discussed.

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An Optically Flat Conductive Outcoupler Using Core/Shell Ag/ZnO Nanochurros

Cited by 9 publications

References 55 publications

Comprehensive Stability Improvement of Silver Nanowire Networks via Self-Assembled Mercapto Inhibitors

Comprehensive Stability Improvement of Silver Nanowire Networks via Self-Assembled Mercapto Inhibitors

Increasing Silver Nanowire Network Stability through Small Molecule Passivation

Hybrid‐Filler Stretchable Conductive Composites: From Fabrication to Application

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