Recycling silver nanoparticle debris from laser ablation of silver nanowire in liquid media toward minimum material waste

Hwang, June Sik; Park, Jong-Eun; Kim, Gun Woo; Nam, Hyeono; Yu, Sangseok; Jeon, Jessie S.; Kim, Sanha; Lee, Hu Seung; Yang, Minyang

doi:10.1038/s41598-021-81692-9

Cited by 15 publications

(9 citation statements)

References 71 publications

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“…A transparent LR-AgNW image is shown in Figure b. Table compares the sheet resistances and transmittances of various hybrid electrodes based on AgNWs, including the LR-AgNW electrode fabricated in this study. − Finally, an optimized LR-AgNW electrode exhibited a transmittance of 93.04% and a sheet resistance of 14.4 Ω/sq. This result indicates that the material has relatively good conductivity at an equivalent transmittance.…”

Section: Resultsmentioning

confidence: 88%

Ag Nanowires via Solution Process and Localized Reduction of Ag Ions for Next-Generation Transparent Conductive Electrodes

Tran

Trinh

et al. 2022

ACS Appl. Nano Mater.

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Metal nanowires are promising next-generation transparent conductive electrodes for application in optoelectronic devices in the field of printed electronics. Because metal nanowire networks have high contact resistance, welding at the junction between nanowires via heat treatment must be performed to improve the conductivity of the network. However, in the annealing step of metal nanowire production, problems such as thermal breakdown due to Rayleigh instability frequently occur. In addition, the conductivity of metal nanowires can be improved via the use of conductive nanomaterials. However, many coating materials can also reduce the transmittance. In this study, we describe a method for locally reducing Ag ions at the surfaces or junctions of Ag nanowires through Joule heating without optical loss. Herein, an organometallic precursor solution containing Ag ions functionalized with amino groups (−NH 2 ) is selectively adhered onto the metal. The attached Ag ions were reduced without any reducing agent, and the electrode conductivity was enhanced via lowering of contact resistance between the Ag nanowires without optical loss. The localized reduced (LR) AgNW electrode exhibited a sheet resistance of 14.4 Ω/sq and a transmittance of 93.04%, which are improved compared to those reported in previous studies. The LR-AgNW could be easily transferred to a flexible plastic film substrate, which was successfully embedded and applied to a light-emitting device that exhibited steady light-emitting performance even when bent. The flexible LR-AgNW film is expected to be useful in various optoelectronic devices such as solar cells, organic light-emitting diodes, touch screens, and wearable devices.

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Section: Resultsmentioning

confidence: 88%

Ag Nanowires via Solution Process and Localized Reduction of Ag Ions for Next-Generation Transparent Conductive Electrodes

Tran

Trinh

et al. 2022

ACS Appl. Nano Mater.

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“…After the fabrication of the Au electrode, the non-irradiated region of the AuCN layer remains on the substrate, but these residuals can be easily wet-etched using ammonia solution. Due to the good solubility of AuCN in the ammonia solution [ 18 , 19 , 20 ] and the volatility of the ammonia solution, this AuCN solution can be recycled after the etching procedure as the drop-casting solution to minimize the material waste [ 27 ].…”

Section: Resultsmentioning

confidence: 99%

A Transformative Gold Patterning through Selective Laser Refining of Cyanide

et al. 2021

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Gold is an essential noble metal for electronics, and its application area is increasing continuously through the introduction of gold nanoparticle ink that enables rapid prototyping and direct writing of gold electrodes on versatile substrates at a low temperature. However, the synthesis of gold nanoparticles has certain limitations involving high cost, long synthesis time, large waste of material, and frequent use of chemicals. In this study, we suggest simultaneous laser refining of gold cyanide and selective fabrication of gold electrodes directly on the substrate without a separate synthesis step. Gold cyanide is commonly the first product of gold from the primitive ore, and the gold can be extracted directly from the rapid photothermal decomposition of gold cyanide by the laser. It was confirmed that laser-induced thermocapillary force plays an important role in creating the continuous gold patterns by aligning the refined gold. The resultant gold electrodes exhibited a low resistivity analogous to the conventional direct writing method using nanoparticles, and the facile repair process of a damaged electrode was demonstrated as the proof-of-concept. The proposed transformative approach for gold patterning, distinguished from the previous top-down and bottom-up approaches, has the potential to replace the well-known techniques and provide a new branch of electrode manufacturing scheme.

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“…To be optically transparent, small-sized patterns are desired. Patterns with more than 50 μm in the line width usually become visible to naked eyes due to the difference in transmittance/reflectance between the regions with and without MNWs along with the light scattering of MNWs, which may be unsuitable for optoelectronic applications. , From this point of view, the MNW patterns fabricated by laser ablation may be a good choice to obtain invisible patterns, as the laser-ablated MNW area remains on the substrate in the form of nanoparticles or debris. − …”

Section: Key Patterning Parametersmentioning

confidence: 99%

Patterning of Metal Nanowire Networks: Methods and Applications

Huang

Zhu

2021

ACS Appl. Mater. Interfaces

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With the advance in flexible and stretchable electronics, one-dimensional nanomaterials such as metal nanowires have drawn much attention in the past 10 years or so. Metal nanowires, especially silver nanowires, have been recognized as promising candidate materials for flexible and stretchable electronics. Owing to their high electrical conductivity and high aspect ratio, metal nanowires can form electrical percolation networks, maintaining high electrical conductivity under deformation (e.g., bending and stretching). Apart from coating metal nanowires for making large-area transparent conductive films, many applications require patterned metal nanowires as electrodes and interconnects. Precise patterning of metal nanowire networks is crucial to achieve high device performances. Therefore, a high-resolution, designable, and scalable patterning of metal nanowire networks is important but remains a critical challenge for fabricating high-performance electronic devices. This review summarizes recent advances in patterning of metal nanowire networks, using subtractive methods, additive methods of nanowire dispersions, and printing methods. Representative device applications of the patterned metal nanowire networks are presented. Finally, challenges and important directions in the area of the patterning of metal nanowire networks for device applications are discussed.

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Recycling silver nanoparticle debris from laser ablation of silver nanowire in liquid media toward minimum material waste

Cited by 15 publications

References 71 publications

Ag Nanowires via Solution Process and Localized Reduction of Ag Ions for Next-Generation Transparent Conductive Electrodes

Ag Nanowires via Solution Process and Localized Reduction of Ag Ions for Next-Generation Transparent Conductive Electrodes

A Transformative Gold Patterning through Selective Laser Refining of Cyanide

Patterning of Metal Nanowire Networks: Methods and Applications

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