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Verra-t-on un jour un remplaçant au silicium dans nos puces électroniques ? Peut-être, disent aujourd’hui des chercheurs du MIT, le Massachusetts Institute of Technology. Ils pensent avoir mis la main sur le meilleur semi-conducteur possible. © H_Ko, Adobe Stock

This is the world’s best semiconductor, according to MIT

Silicon is now at the heart of our daily lives. in our smartphones. In our PV solar panels. However it is not perfect. But this new material that researchers have studied closely could be just that. His name, cubic boron arsenic.

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Silicon is everywhere. in our chips Computers. or in our area Photovoltaic solar panels. However, this article Semiconductors Far from perfect. It causes overheating problems. And do not let all the files “grains” loader. brakes for some applications. But looking for Massachusetts Institute of Technology (MIT, US) They now think they’ve found a material that ignores these difficulties. They even refer to cubic boron arsenic (c-BA) as The best semiconductor never found. Even the best possible semiconductor!

some – like are you herefor him electric car – It has already switched from silicon to silicon carbide. Because, even if its electrical motion is less, it is thermal conductivity triple. The cubic boron arsenic created by MIT researchers has a thermal conductivity 10 times greater than that of silicon. And great movement too Electrons Just “holes” – Their changing positive egos. ‘It could change the rules of the game’comments by Jungwoo Shin, researcher, at A MIT press release.

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The problem is that at present, it is still difficult to produce cubic boron arsenide. At least with sufficient quality to allow it to express all these characteristics of interest to researchers. This requires that the material be uniform. Existing methods can only produce irregular cubic boron arsenide.

Another problem: there are still basic properties to make it The designated Si alternative that has not yet been tested. Its long-term stability, for example. “So far, we have not paid much attention to this material.”Zhang Chen, another researcher at the Massachusetts Institute of Technology, said. But now that some of these properties have been revealed, “Maybe we’ll give it more credit, so we’ll be able to develop methods to describe it better and produce it better.” »

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