Spontaneous self-welding of silver nanowire networks

Literature Information

Publication Date 2015-02-16
DOI 10.1039/C5CP00035A
Impact Factor 3.676
Authors

Baekhoon Seong, Ilkyeong Chae, Hyungdong Lee, Vu Dat Nguyen, Doyoung Byun


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Abstract

As an alternative to the traditional indium tin oxide transparent electrode, solution-processed metal nanowire thin film has been a promising candidate due to its flexibility. However, high contact resistance between the nanowires remains a major challenge to improve the performance. Here, we have investigated a one-step process of coating and welding of nanowires on flexible film. An electric field-assisted spray coating method developed in this study could generate finely charged droplets of nanowire solution at high flow rate. While charged droplets deposited on the flexible film, electric charges were flowing through the nanowire network producing electrical current. It induced Joule heating and welding at junctions of the nanowires without post-processing steps. Using the coating method, the silver nanowire thin film could be uniformly deposited evenly on a large area substrate, and spontaneously self-welding was carried out between the nanowire networks. The transparent electrode of the silver nanowire prepared by the concurrent deposition and the self-welding process could improve uniformity, roughness and sheet resistance.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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