Transparent conductive electrodes (TCEs), which offer advantages of high electrical conductivity and optical transparency, are essential components of practical high-tech optoelectronics such as touch panels, e-papers, organic light-emitting diodes, and solar cells. Solution-processed Ag nanowires (AgNWs) have been considered as a practical alternative TCE material suitable for industrial-scale mass production. However, the contact resistance at AgNW junctions strongly affects the total sheet resistance of AgNW electrodes. In recent years, various welding techniques for AgNW network electrodes have been developed with the aim of decreasing their sheet resistance while maintaining their optical transmittance. In this paper, we present a review of various welding methods such as thermal-mechanical welding, light welding, chemical welding, and metal-plating welding. [Figure not available: see fulltext.].
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Acknowledgments: This work was supportedby a grant fromtheCenter Various post-welding processes for AgNW network electrodes for Advanced Soft Electronics (CASE) under the Global Frontier Research have been developed in an effort to reduce the junction resis-Program (NRF-球爃? 甀M 甀A ?A ? 爃礃? 猃? 礂I, Basic Science Research Pro甃?gra-?m? andNanoMaterialTechnologyDevelopmentProgramthroughtheNational tance. The application of welding methods of AgNWs enables ResearchFoundationofKorea(NRF)fundedbytheMinistryofScience, ICT& full interconnection of the NWs that are bonded weakly with Future Planning (球?猃礀R ?A?B 球?爃眃?笃爀 and?爃猃?M 甀Aeac?hBo稃爃?ther. A甃瘃?s a res猂Iult., a post-welded AgNW film exhibits not only high electrical conductivity but also mechanical ductility under repeated mechanical stress. In this short review, we
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry