On October 29th, Andre Geim from the University of Manchester in the United Kingdom was welcomed by the stars at the â€œ2015 China International Graphene Innovation Conferenceâ€ held in Qingdao, China. His name is now as famous as the "universal material" graphene.
As the Nobel Prize winner in physics in 2010, the first discoverer of graphene, when he took over an innovative product, a graphene waistband, from a Chinese company, he had a slightly serious mouth. Showing a hint of inconspicuous but meaningful smile.
As a new material of a single-layer sheet structure composed of carbon atoms, graphene can be said to be the thinnest and hardest material in the world. It has ultra-thin, ultra-light, ultra-high strength, super-conductivity and excellent The room temperature is thermally and transmissive, and the structure is also very stable. Not only is it expected to double the efficiency of lithium batteries, but it is also expected to replace silicon and create a new generation of supercomputers in the future.
Founded in the laboratory in 2004, the discoverer was awarded the Nobel Prize in 2010, and now the graphene industry is everywhere, this new type of â€œuniversal materialâ€ representing the next era, its application prospects are limitless. However, the current application situation is mixed. On the one hand, the graphite ore resources that are not closely related to the real graphene film are favored. On the other hand, the products of purely speculative graphene concept are endless.
Compared with the state in which the international chain is often dominated by technology giants and the R&D to industrialization is very smooth, China faces the dilemma that graphene research and development is still limited to universities and research institutes, and is out of touch with practical applications. Where does the graphene industry in China go, not only requires guidance at the national level, but also requires sufficient time and patience.
On October 23, Chinese President Xi Jinping visited Gammel's National Graphene Research Institute at the University of Manchester. On the morning of the same day, Chinese company Huawei announced a joint research with Manchester University to jointly develop next-generation high-performance technologies in the ICT field, and how to apply breakthrough results in graphene to consumer electronics and mobile communication devices.
Ren Zhengfei, the founder of Huawei, has repeatedly talked about graphene and proposed that "the biggest subversion in this era will be the era of the silicon era in the graphene era" and that a technological revolution will erupt in the next 10 to 20 years.
Graphene is a honeycomb lattice two-dimensional atomic crystal composed of a single layer of carbon atoms. The theoretical thickness is only 0.34 nm. It has excellent thermal conductivity, mechanical properties, high electron mobility, high specific surface area and quantum. Hall effect and other properties.
It is precisely because of these special and excellent physical and chemical properties that graphene has potential application prospects in the fields of microelectronics, physics, energy materials, chemistry, biomedicine and so on. In 2004, AndrÃ© Gem and Konstan TIn Novoselov of the University of Manchester in the United Kingdom stripped graphene from graphite flakes, and the two won the 2010 Nobel Prize in Physics.
Although the method they used was very primitive, the greatness of this discovery was that it broke the conclusion of the international physics community for half a century - the inability to obtain stable graphene. In fact, in the same issue of Nature, which published the famous paper of Gamm, there was also an article about graphene by Chinese scholar Zhang Yuanbo and his collaborators, but the Nobel Prize did not favor the latter. At the time, it was regarded as the closest time for domestic scholars to Nobel.
Zhang Yuanbo and his collaborators and the Gemm team worked in 2005 to lead the world in the study of graphene. Since then, Zhang Yuanbo's work has focused on the preparation of graphene, electrical transport properties, scanning tunneling energy spectrum, and measurement of far-infrared spectroscopy, and has been active in the forefront of this field. Zhang Yuanbo told Caixin reporter that after the two groups discovered the new physical phenomenon of graphene, the field showed explosive growth, and there is no sign of saturation.
The most critical part of the smartphone that the public uses every day is a touch screen that is both conductive and transparent. Graphene just has such a characteristic that it can be made into such a touch screen. Moreover, the strength and flexibility of graphene are better than the current transparent electrode material indium tin oxide (ITO).
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