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突破性的将迎来了硅和石墨烯晶体管让路

Graphene is a perfect 2D crystal of covalently bonded carbon atoms and forms the basis of all graphitic structures。 (c) Photo: Costas Galiotis FORTH/ ICE-HT and Dept。 Materials Science, University of Patras

Graphene is a perfect 2D crystal of covalently bonded carbon atoms and forms the basis of all graphitic structures。 (c) Photo: Costas Galiotis
FORTH/ ICE-HT and Dept。 Materials Science, University of Patras

Time and time again we’;ve hailed on ZME Science the cultural and scientific advances graphene is about to bring to humanity。 It’;s the strongest material known so far, while also being the lightest it can be magnetic and –; something of uttermost important to science –; it’;s the best electrical conductor that we know of。  The latter also comes with a curse; one that electrical engineers have been trying to dispel for years, only to go through arduous sleepless nights。 Building working graphene transistors is imperious for technology’;s gr*** design of the future, but the thing with a graphene transistors is that you can’;t turn it off。 Now, if you know your basic electrical engineering you know that this means graphene’;s  useless in this case, despite the numerous and tremendous benefits it could provide。

Yup, it’;s that conductive! Scientists at University of Riverside, California (UCR) , however, may have finally developed a work-around after they published a paper in which they demonstrate a graphene transistor circuit that can switch on and off by exploiting a counter-intuitive effect called negative resistance –; we’;ll get to that in a minute。

 “The obtained results present a conceptual change in graphene research *** indicate an alternative route for graphene’s applications in information processing,” the led by Guanxiong Liu  write。

The de facto industry standard for building just about any electronics today is silicon。 Now, as faithful and reliable silicon has proven to be along the decades, it’;s soon becoming obsolete。 Miniaturization has come a long way, but there’;s only so much you can squeeze over such a limited surface。 Most industry pundits think that the downscaling of silicon chip technology cannot extend much beyond 2026。

本文源自: 环亚娱乐游戏

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