Researchers have discovered that concentrating a 'cold plasma' beam on soft fruit kills off the spores which cause mould. It can keep it away for up to a week.
They then defined the transistor channel using electron-beam lithography, removing graphene outside of channel regions with an oxygen plasma.
然后在氧等离子体中用电子束刻蚀法去除沟道区石墨烯形成晶体管的沟道。
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Cold plasma, a combination of oxygen and helium gas concentrated into a lightening-like beam, has previously been used by medics to clean bacteria off wounds.