Journal article
Laser shock-enabled optical–thermal–mechanical coupled welding method for silver nanowires
International journal of machine tools & manufacture, Vol.199, 104162
06/2024
DOI: 10.1016/j.ijmachtools.2024.104162
Abstract
Silver nanowires (AgNWs) are recognized as highly promising materials for flexible and transparent electrode applications. However, existing material-processing methods fail to achieve uniform and reliable AgNWs junctions. In this study, we propose a new method using the laser shock effect combined with the laser heating effect, for creating AgNW junctions within thin films. We explored the welding mechanism of AgNWs through optic-thermal welding, laser shock-enabled mechanical welding, and laser-shock-enabled optical-thermal-mechanical (LS-OTM) experiments, as well as numerical simulations, and the results demonstrate that the innovative mechanism of the LS-OTM process lies in its utilization of laser shock to adjust the gap between the nanowire junctions, which in turn achieves a fine control of the thermal effect of the heating laser localised surface plasmon resonance, and the atomic diffusion in the solid state at intermediate temperature under the action of the impact force is the mechanism of the formation of high-quality junctions. We prepared flexible transparent conductive films and studied their transmittance, conductivity, and thermal properties, the results show that the flexible transparent conductive films prepared by LS-OTM welding method have excellent transmittance, conductivity, and thermal properties, this verifies the feasibility and effectiveness of this processing strategy. The LS-OTM method is a viable solution for manufacturing transparent, conductive films from AgNWs for emerging applications such as flexible heated films, flexible displays, and wearable medical devices.
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•A novel synchronized laser-coupled synergistic nano hotspot modulation strategy is proposed.•Nanogap modulation of laser shock allows for precise fine-tuning of the LSPR thermal effect.•The process facilitates moderate-temperature atomic diffusion at interfaces.•The process increases the quantity of solder joints while preventing solder joint melting.•The process is suitable for photothermal modulation of a wide range of nanomaterials.
Details
- Title: Subtitle
- Laser shock-enabled optical–thermal–mechanical coupled welding method for silver nanowires
- Creators
- Yizhong Hu - Wuhan UniversityXiaohan Zhang - Wuhan UniversityHongtao Ding - University of IowaYaowu Hu - Wuhan University
- Resource Type
- Journal article
- Publication Details
- International journal of machine tools & manufacture, Vol.199, 104162
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/j.ijmachtools.2024.104162
- ISSN
- 0890-6955
- eISSN
- 1879-2170
- Language
- English
- Date published
- 06/2024
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984618625402771
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