Designing Liquid Metal Interfaces to Enable Next Generation Flexible and Reconfigurable Electronics
| Autor: | Alexander Cook, Nahid Ilyas, Christopher E. Tabor |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Liquid metal
Materials science Mechanical Engineering Stretchable electronics Oxide chemistry.chemical_element Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Flexible electronics 0104 chemical sciences chemistry.chemical_compound chemistry Mechanics of Materials Surface modification Fluidics Work function Gallium 0210 nano-technology |
| Zdroj: | Advanced Materials Interfaces. 4:1700141 |
| ISSN: | 2196-7350 |
| DOI: | 10.1002/admi.201700141 |
| Popis: | Gallium liquid metal alloys are room temperature fluidic conductors that are used to create a variety of paradigm shifting concepts in stretchable and reconfigurable electronics. A viscoelastic solid oxide skin encases the bulk liquid metal alloy which allows remarkably unprecedented 3D fluidic structures to be constructed. This oxide also has detrimental effects to fluidic behavior in microchannels because it adheres to the channel walls. The work mitigates these detrimental effects in flow behavior through surface modification of the gallium oxide with phosphonic acids to control interfacial chemistry. This results in no adhesion between the gallium surface oxide and the underlying substrates and no alloying with metal electrodes, two pervasive problems in the field. In addition to control over the flow properties of the metal alloy with the oxide intact, phosphonic acid modification allows tunability of the work function and surface oxide thickness. |
| Databáze: | OpenAIRE |
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