期刊
FARADAY DISCUSSIONS
卷 199, 期 -, 页码 63-73出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7fd00016b
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资金
- UK Engineering and Physical Sciences Research Council [EP/L02098X/1]
- Engineering and Physical Sciences Research Council [EP/L02098X/1] Funding Source: researchfish
Electrowetting-on-dielectric devices typically have operating voltages of 10-20 V. A reduction in the operating voltage could greatly reduce the energy consumption of these devices. Herein, fully reversible one-electrolyte electrowetting of a droplet on a solid metal surface is reported for the first time. A reversible change of 29 degrees for an 800 mV step is achieved. The effects of surface roughness, electrolyte composition, electrolyte concentration and droplet composition are investigated. It was found that there is a dramatic dependence of the reversibility and hysteresis of the system on these parameters, contrary to theoretical predictions. When a 3-chloro-1-propanol droplet is used, a system with no hysteresis and a 40 degrees change in angle are obtained.
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