An eco-friendly nitrate-free method for the synthesis of silver nanowires with reduced diameters

Zhao, Wei; Wang, Shasha; Zhao, Chunbao; Cao, Hong‐Tao; Zhang, He; Peng, Aizhong; Dong, Hong-jin; Xie, Linghai; Huang, Wei

doi:10.1039/d0tc05149g

Cited by 6 publications

(4 citation statements)

References 52 publications

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“…This includes using green reducing agents or water‐based methods, and low toxicity solvents. [ 178,179 ] Waste management related to fabrication, and the recycling of critical metal should also be considered, to increase cost‐effectiveness and reduce environmental impact. Until now, there have been few studies on this issue.…”

Section: Metallic Nanomaterials For Tesmentioning

confidence: 99%

Advances in Flexible Metallic Transparent Electrodes

Nguyễn

Papanastasiou

Resende³

et al. 2022

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Transparent electrodes (TEs) are pivotal components in many modern devices such as solar cells, light‐emitting diodes, touch screens, wearable electronic devices, smart windows, and transparent heaters. Recently, the high demand for flexibility and low cost in TEs requires a new class of transparent conductive materials (TCMs), serving as substitutes for the conventional indium tin oxide (ITO). So far, ITO has been the most used TCM despite its brittleness and high cost. Among the different emerging alternative materials to ITO, metallic nanomaterials have received much interest due to their remarkable optical‐electrical properties, low cost, ease of manufacturing, flexibility, and widespread applicability. These involve metal grids, thin oxide/metal/oxide multilayers, metal nanowire percolating networks, or nanocomposites based on metallic nanostructures. In this review, a comparison between TCMs based on metallic nanomaterials and other TCM technologies is discussed. Next, the different types of metal‐based TCMs developed so far and the fabrication technologies used are presented. Then, the challenges that these TCMs face toward integration in functional devices are discussed. Finally, the various fields in which metal‐based TCMs have been successfully applied, as well as emerging and potential applications, are summarized.

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Section: Metallic Nanomaterials For Tesmentioning

confidence: 99%

Advances in Flexible Metallic Transparent Electrodes

Nguyễn

Papanastasiou

Resende³

et al. 2022

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“…A schematic illustration of the water-based vacuum filtration wet-transfer printing fabrication procedure is shown in figure 1. Briefly, micrometer-sized AgNWs with diameters of 150 and 22 nm were first synthesized by a modified polyol reduction route in the presence of polyvinylpyrrolidine (PVP) [33][34][35][36][37] and the successful synthesis was confirmed by XRD (figure S2) and SEM (figure S3). Then ethylene glycol (EG) was added to increase the viscosity of AgNW dispersion (table S1).…”

Section: Resultsmentioning

confidence: 99%

A reusable wet-transfer printing technique for manufacturing of flexible silver nanowire film-based electrodes

Chen¹,

Wu²,

Xu³

et al. 2021

Nanotechnology

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To explore a simple and efficient way to fabricate thin film electrodes on flexible substrates is highly desired because of its high promising application in optoelectronics. Transfer printing technique plays a key role in the fabrication of flexible electrodes from conventional substrates to flexible substrates. Unfortunately, a simple, room temperature, environmental-friendly and reusable transfer printing technique still remains challenging. Here we demonstrated a novel water-based wet-transfer printing technique that is simple, room temperature, environmental-friendly and reusable by taking advantage of the adjustment of the intermolecular hydrogen bonding between thin film and substrates. This effective and practical transfer technique may provide an effective route to develop electronic flexible devices with high performance.

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“…As the base of flexible electronics, a silver nanowire (AgNW) transparent electrode has broad application prospects. − For practical application, the uniformity of the transparent electrode is important. To promote the uniformity of AgNW transparent electrode, researchers have developed many excellent strategies. − First, researchers improve the wettability between the ink and the substrate. , Specific methods include adjusting the surface tension of the ink and substrate by the following methods: ozone activation, corona treatment, binder coating, adding surfactant or low-surface-tension material, etc. − Second, the drying process is carefully controlled to relieve the problem of coffee ring and punctate film. − Third, the film-preparation technology (ink dosage, coating speed, etc.)…”

Section: Introductionmentioning

confidence: 99%

Wet Film Leveling for Promoting the Uniformity and Conductivity of Silver Nanowire Transparent Electrode

Chen,

Zhao,

Zhou

2024

Langmuir

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Wet film leveling can greatly promote film uniformity. However, in the field of metal nanowire, wet film leveling is rarely mentioned. For low-viscosity inks like metal nanowire ink, how to realize wet film leveling is still unclear. Herein, we study the wet film leveling of silver nanowire ink and systematically investigate the relationship between leveling effect and influence factors: (1) there is a uniformity-promotion limit for traditional methods, while wet film leveling can break through this limit and further promote the film uniformity; (2) for wet film leveling, lowering ink's surface tension has no effect, and eliminating surface tension gradient by high-surface-tension leveling agent is the main task; (3) leveling process includes wet film destruction process and ink reflow process; (4) in the destruction process, the leveling-agent solubility and quantity dominate the leveling effect, while the influence of surface tension is little; (5) for solubility and quantity, there is a suitable range to realize optimum leveling effect, and the leveling effect exhibits a contrary relationship with the solubility in a suitable range (2−11%); (6) in the reflow process, the main influence factor is ink viscosity, and the leveling effect exhibits a contrary relationship with ink viscosity. After being leveled by 1.5% n-pentanol, the sheet resistance and sheet-resistance variation coefficient of film decrease from 38.3 Ω/sq/3.83% to 25.7 Ω/sq/1.88%. Further study reveals that the film improvement is not from the ink wettability and drying. Above theoretical results possess certain universality for film preparation by a wet process and can be used by the science and industry field.

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An eco-friendly nitrate-free method for the synthesis of silver nanowires with reduced diameters

Abstract: Ag NWs with reduced diameters were synthesized from an eco-friendly AgOAc precursor instead of AgNO3.

Cited by 6 publications

References 52 publications

Advances in Flexible Metallic Transparent Electrodes

Advances in Flexible Metallic Transparent Electrodes

A reusable wet-transfer printing technique for manufacturing of flexible silver nanowire film-based electrodes

Wet Film Leveling for Promoting the Uniformity and Conductivity of Silver Nanowire Transparent Electrode

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