Ion Switch Controls Current by Growing and Dissolving Salt Crystals
AI TIMES ·
✦ AI Summary
According to AI TIMES, a UNIST research team announced on October 5 that it had developed an ion switch that turns current on and off by gro…
According to AI TIMES, a UNIST research team announced on October 5 that it had developed an ion switch that turns current on and off by growing and dissolving salt crystals. In 32 consecutive operation tests, the device’s on-state current was, on average, 156 times higher than its off-state current, clearly separating ion flow blockage from transmission. In a structure where saltwater fills nanometer-scale channels, crystal formation blocks the path, and supplying water again opens it. The team repeated this process by placing a separate flow channel above the passage and alternately sending in dry gas and water. A logic circuit that connected two switches in series and in parallel on a single chip also worked properly, confirming the potential for computation beyond a single device. The researchers said the device could serve as a basic component for circuits that handle signals with ions instead of electrons, and could lead to brain-inspired computing and bio-signal control technologies.
Perspective
This achievement is meaningful in that it showed both switching and logic operations — the most basic functions of ion circuits — through a familiar material transformation. By providing a bridge from electron-centric devices to real circuits with a different operating principle, it suggests the possibility of broadening new design options in areas such as brain-like computing and signal processing that interfaces with living systems, which existing semiconductors alone approach in a different way.
This perspective is BizCrush's own commentary and is not part of the reporting by AI TIMES.
This article was produced with the help of an automated content generation algorithm.
Source: AI TIMES
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