Molecular mechanics of Ag nanowire transfer processes subjected to contact loading by a PDMS substrate

Kang, Minseok; Lee, Hyunkoo; Hong, Sukjoon; Choi, Joonmyung

doi:10.1039/d2nh00212d

Cited by 7 publications

(3 citation statements)

References 49 publications

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“…Ag NWs possess outstanding bending properties because of the intrinsic flexibility of metal Ag. , The NiO@Ag NW-based FTHs are expected to have good mechanical flexibility. The T s value at an applied voltage of 4 V for the NiO@Ag NW-based FTHs with different bending radii is examined to determine the flexibility.…”

Section: Resultsmentioning

confidence: 99%

Ultrahigh-Temperature-Tolerant NiO@Ag NW-Based Transparent Heater with High Stability, Durability, Ultraflexibility, and Quick Thermal Response

Song

2023

ACS Appl. Nano Mater.

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High-performance electrical heaters with high transmittance, fast response speed, superior heat resistance, ultraflexibility, high working temperature, and sufficient stabilities are highly desirable for application in heating systems in areas such as healthcare and aerospace. Herein, we demonstrate an ultrahigh-temperature-tolerant flexible transparent heater (FTH) consisting of a NiO@Ag core–shell nanowire (NiO@Ag NW) network and a colorless polyimide (cPI) film. NiO nanoshells are formed uniformly on the surface of Ag NWs through the solution process, which enhances the stability of Ag NWs. The heating behaviors and transmittance can be controlled by the NiO@Ag NW spin-coating cycle. The NiO@Ag NW-based FTHs show a fast thermal response of ∼15 s, a high transmittance of 86.2% in the visible region, and a large thermal figure of merit of 30.7 m2·°C/W under optimal preparation conditions. The saturation temperature of FTHs has barely changed after 20 taping tests and 1000 bending cycles at a bending radius of 0.5 mm. Particularly, the heating temperature of FTHs can reach 266 °C in the air under an applied voltage of 9 V. Moreover, the FTHs possess sufficient heating reliability, stability, and repeatability during the long-term and repeated heating cycles. In addition, the FTHs are resistant to a number of harsh environments.

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Section: Resultsmentioning

confidence: 99%

Ultrahigh-Temperature-Tolerant NiO@Ag NW-Based Transparent Heater with High Stability, Durability, Ultraflexibility, and Quick Thermal Response

Song

2023

ACS Appl. Nano Mater.

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“…First, a selective laser process is actively investigated for efficient utilization of other nanomaterials as well, including NWs and 2D materials in particular [ 118 ]. A laser is proven to be a useful tool for direct and facile processing of these materials, and a wide range of techniques have been developed, e.g., positioning [ 119 , 120 ], ablation [ 111 ], nano-welding [ 121 ], pyrolysis [ 122 ], modification [ 123 ], thinning [ 124 ], etc. As a result, the materials which are in the spotlight for next-generation applications are largely compatible with laser processes.…”

Section: Conclusion and Perspectivementioning

confidence: 99%

Direct Writing of Functional Layer by Selective Laser Sintering of Nanoparticles for Emerging Applications: A Review

et al. 2022

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Selective laser sintering of nanoparticles enables the direct and rapid formation of a functional layer even on heat-sensitive flexible and stretchable substrates, and is rising as a pioneering fabrication technology for future-oriented applications. To date, laser sintering has been successfully applied to various target nanomaterials including a wide range of metal and metal-oxide nanoparticles, and extensive investigation of relevant experimental schemes have not only reduced the minimum feature size but also have further expanded the scalability of the process. In the beginning, the selective laser sintering process was regarded as an alternative method to conventional manufacturing processes, but recent studies have shown that the unique characteristics of the laser-sintered layer may improve device performance or even enable novel functionalities which were not achievable using conventional fabrication techniques. In this regard, we summarize the current developmental status of the selective laser sintering technique for nanoparticles, affording special attention to recent emerging applications that adopt the laser sintering scheme.

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“…As a result, several post-treatments have been put forward to reduce the high junction resistance, such as thermal treatment [16], mechanical pressing [17], capillary force [18], chemical deposition [19], light-induced welding [20], etc. In order to avoid the harmful effects of rough surfaces, the roughness optimization of Ag NWs is usually carried out using conductive material coverage [21] or substrate transfer [22].…”

Section: Introductionmentioning

confidence: 99%

Flexible Transparent Electrode Based on Ag Nanowires: Ag Nanoparticles Co-Doped System for Organic Light-Emitting Diodes

Wu,

Xing,

Sun

et al. 2024

Materials

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Flexible organic light-emitting diodes (FOLEDs) have promising potential for future wearable applications because of their exceptional mechanical flexibility. Silver nanowire (Ag NW) networks are the most promising candidates to replace indium tin oxide (ITO), which is limited by its poor bendability. In this study, three different methods including methanol impregnation, argon plasma treatment, and ultraviolet radiation were used to reduce the junction resistance of Ag NWs to optimize the flexible transparent electrodes (FTEs); which were prepared using Ag NWs and poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS). Then, the optoelectronic properties of the FTEs were further improved by using a co-doped system of silver nanowires and silver nanoparticles (Ag NPs), the structure of which consisted of PET/Ag NWs: Ag NPs/PEDOT: PSS/DMSO. The largest FOM value of 1.42 × 10−2 ohm−1 and a low sheet resistance value of 13.86 ohm/sq were obtained using the optimized FTEs. The prepared FOLED based on the optimized FTEs had a luminous efficiency of 6.04 cd/A and a maximum EQE of 1.92%, and exhibited no observed decline in efficiency when reaching maximum luminance. After 500 bending tests, the luminance still reached 82% of the original value. It is demonstrated that the FTEs prepared via the co-doped system have excellent optoelectronic properties as well as high mechanical stability.

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Molecular mechanics of Ag nanowire transfer processes subjected to contact loading by a PDMS substrate

Abstract: Precise transfer and attachment of a single nanowire to a target substrate is an interesting technique in surface engineering. The spacing, which restraints the attachment of a nanowire to a...

Cited by 7 publications

References 49 publications

Ultrahigh-Temperature-Tolerant NiO@Ag NW-Based Transparent Heater with High Stability, Durability, Ultraflexibility, and Quick Thermal Response

Ultrahigh-Temperature-Tolerant NiO@Ag NW-Based Transparent Heater with High Stability, Durability, Ultraflexibility, and Quick Thermal Response

Direct Writing of Functional Layer by Selective Laser Sintering of Nanoparticles for Emerging Applications: A Review

Flexible Transparent Electrode Based on Ag Nanowires: Ag Nanoparticles Co-Doped System for Organic Light-Emitting Diodes

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