According to a recent report by the Physicist Network, scientists at Carnegie Mellon University (CMU) have developed a metal alloy that is liquid at room temperature and injects it into rubber to produce a soft and flexible transistor that is natural skin. The latest results, published in the journal Advanced Science, indicate that these soft materials will create a new era of liquid computers.
Transistors are known as the "brains" of digital products such as handheld computers and smart phones, and are responsible for processing signals and data. As their size gets smaller, these digital computer products are becoming smaller, stronger, and more popular. But because the transistors are made of solid materials, they can't get rid of the hard-bones that are thousands of miles away.
In the latest study, CMU software machine lab engineers Carmel McGiddy and James Westman developed a new approach to making fluid transistors with digital capabilities and soft and deformable. By blending the mixing ratios of two metals, indium gallium, they found a special alloy that is liquid at room temperature. When injected into rubber, it not only conducts electricity like metals such as copper and silver, but also has the same soft elasticity as natural skin.
They use liquid indium gallium alloys to make extensible circuit lines and electronic switches that work by connecting the two droplets. Experiments have shown that when a volt is applied in a certain direction, the two droplets will approach each other and join into a metal bridge to achieve a conductive function; when a volt is applied in the opposite direction, the droplets will move away from each other. The conductivity is turned off. As long as a small amount of voltage is applied, the liquid transistor will have the same characteristics as a conventional transistor.
The researchers say that the two droplets are similar to the source and drain of the FET, and the transistor circuit can be switched on and off by voltage regulation of the shape of the droplet. This liquid metal circuit has infinite application potential in the future, such as the development of flying robots that simulate birds, which can withstand the deformation pressure under high altitude conditions while maintaining electrical functions; develop and search for robots, monitor diseases and restore brains. Liquid computer in the field of functions and so on.
Editor-in-chief
Liquid metal and rubber are semiconductors! Even if you are familiar with the semiconductor industry, I am afraid that there is such a good thing. Material science is so magical, open the door that nature has never opened, and embark on an unprecedented path. China's material research and development talents are strong and strong, and this highly promising technology is bound to be quickly followed up. The semiconductor industry, which strives to break through the limits, is eager for such research projects that indicate new directions.
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