Can graphene bring "subversive" changes to the LED industry?

Is it only a few seconds to charge a cell phone? The phone screen can be folded and bent... These may be possible because of the appearance of the graphene, known as the "magic material of the twenty-first Century". One of the discoverers of graphene, Andre Haim, the Nobel prize winner in physics, described it, "graphene is like the Alice wonderland for many people, very miraculous." As the thinnest, hardest, and most conductive and conductive nano material found at present, graphene is known as the "black gold", the king of new materials. Scientists have even predicted that graphene will completely change the twenty-first Century, and the new news about the extraordinary application of graphene is also taking the thinnest light bulb in history. It only takes a few seconds to charge a cell phone. How marvelous graphene is, will it bring "subversive" changes to production and life, and let us get closer to graphene! Graphene: what is the magical substance of "the king of new materials"? China is a big country of graphite resources, and it is one of the most active countries in the research and application of graphene. Scientists and industry people are focusing on it. Many domestic researchers and enterprises have already devoted themselves to the research of the application of graphene. With the progress of technology, the industrialization wave of preparation and application of graphene will be developed worldwide in the future. Graphene, in fact, is a two-dimensional crystal that is stripped from the graphite material and consists of a carbon atom with only one layer of atomic thickness. The graphite in the pencil core is equivalent to the myriad of layers of graphene. "It is the thinnest and most powerful material in nature so far, it can be stretched infinitely, bending to a large extent without breaking, and resisting great pressure." Andre Haim says it has unusual thermal conductivity and conductivity. "Graphene is highly conductive and chemical structure is very stable. It is an ideal electrode material for mobile batteries and power supply." Cheng Huiming, a fellow of the academician of the Chinese Academy of Sciences and the Metal Research Institute of the Chinese Academy of Sciences, said that graphene can be further used in combination with electronic and electronic devices in order to increase the storage rate of other electric storage equipment. Another oddity of graphene is "zero Permeation" - all gases and liquids are not permeable. This also makes the graphene products have a "needless needle, water can not be poured into" the ability. It's far more than that to be surprised. Graphene is highly adsorptive, and scientists are studying to use it as a filter device for seawater desalination and sewage treatment. It has a very good light transmittance and is suitable as a material for transparent electronic products. The key problem is coming! How big is the opportunity for graphene to enter the LED lighting field? What can graphene do in the field of LED lighting? The following will lead you from the angle of patent. After a simple search in the Chinese database, it was found that the application of graphene in the field of lighting in China began in 2008, and the application volume increased every year. Up to now, more than 1000 patent applications have been applied, of which more than 90% of the applicants come from the domestic applicants. Mainly involving the two categories of H01L and F21S, the application of the F21S field is basically the domestic applicant, mainly using the thermal conductivity of graphene, coating with light source or luminaire surface heat dissipation, more applicants, mainly by enterprises and individual applications, not much description. In the field of H01L, the top ten applicants are mainly domestic research institutes and universities. Enterprises have Beijing East, IBM and South Korea SamSung. The application of IBM is mainly in the field of power semiconductor devices. The applications of Samsung in Korea involve the lighting areas such as LED, OLED and display devices. With patent 2-8 as the representative, a graphene material layer (3, 4, 6, 7, 8) is added to the original structure, and a series of advantages, such as transparency, conduction and heat conduction of graphene, can be made up after the addition of graphene, which can make up a significant technical effect, or directly replace the original material (patent 5) with Shi Moxi material (patent 5). And a significant technical effect has been achieved. With the majority of the improved patents, the technical difficulty of this kind of patent is relatively low. The strength of the patent application of the domestic enterprises is not weaker than that of the foreign companies, and the long-term generation, the technical personnel have accumulated a lot of relevant experience, and it is easier to combine the characteristics of the new materials and put forward the improved technical scheme. The development of the application of graphene in the lighting field is still in the growth stage, and the leading advantages of foreign companies are not obvious. Domestic enterprises and R & D institutions have strengthened their investment. It is believed that there is a chance to catch up with foreign technology and gain a place in the future market. Graphene is entering people's lives from the laboratory. "The future of new materials is huge. For example, the application of nano - type new material graphene can not be extinguished in the fire of dangerous chemicals, but if graphene is used, it can be used. Using graphene materials, the mobile phone may be as thin as the hotel room card in the future. " Wei Jie, a professor at the school of economics and management at the Tsinghua University. More than 20 kinds of graphene products, such as graphene physiotherapy, heating products, LED high thermal graphene composite material, graphene bulletproof material, graphene electrothermal clothing and other kinds of graphene products have been introduced. At present, Jiangsu Changzhou, known by the industry as the "Oriental carbon Valley", has already owned the service platform for the development of graphene industry technology and business incubation; the Chongqing Green Intelligent Technology Research Institute of the Chinese Academy of Sciences has also successfully produced 15 inch monolayer graphene mobile phone display, and the high iron interior materials have begun to use graphene. The technology of graphene is quietly affecting the fields of production and life. "Using the characteristics of graphene to develop a new type of bulletproof vest, the bullet proof insert plate only needs 17 millimeters can achieve or even exceed the traditional product bulletproof effect, the weight can also be reduced by 20%." Shi Jianxin, chairman of Qingdao Hua Gao Mo Polytron Technologies Inc, said. For a long time, the endurance of smartphones is always the biggest short board. Song Lilu said they have developed a new lithium - electronic battery for graphene, which is greatly shortened and the cell phone can be recharged in a few minutes. Chen Chengmeng, deputy research fellow of the Shanxi Institute of coal chemistry, Chinese Academy of Sciences, pointed out that the development of the graphene industry in China still exists such problems as high production cost, product quality to be promoted and insufficient interaction between upstream and downstream and so on. "There is no national standard, industry standard and enterprise standard in the current graphene industry, and there is no scientific unification of the quality, preparation technology, testing equipment and methods of graphene." Shi Jianxin said. The graphene industry must avoid the situation of coax to the top, and need the whole resource to carry on the innovative layout and form the polymerization effect. "The development of industry has its own law. At present, the graphene industry is still in the primary application stage. In the process of quantitative change, people should be patient and nurture and care for the healthy and sustainable development of this new industry." Zhang Zhiqiang, Minister of energy saving technology and new materials department of Qingdao Hi-tech Zone, said. HUAWEI Technology Co., Ltd. has announced a collaboration with the National Institute of graphene research at the University of Manchester, UK, to study how to apply the breakthrough of Shi Moxi's field to consumer electronics and mobile communications equipment. It is expected that a new "revolution" will occur after the change of the mobile phone to the smart machine. The characteristics of the graphene will make the display super thin and light, so that the flexible features can be curled. The real arrival of the epoch of graphene still needs to be counted, and the graphite ore reserves in China account for 75% of the world's total reserves, and the production amount is about 70% of the world's total production, which has the resource base for the development of graphene industry. Up to now, there are more than 100 graphene enterprises in China, and industrial clusters are formed in Changzhou, Wuxi, Qingdao, Shenzhen and other places. However, there are many researchers point out that graphene as a new material, to truly market, it can be described as "bright prospects, twists and turns". The first difficulty is limited to the production of materials. Liu Zhongfan, a professor at the Academy of Chinese Academy of Sciences and professor of Peking University, said that to commercialize graphene, a low cost and high quality product of graphene needs to be produced, but it is not easy to make the graphene. There are many challenges on the technology level, and mass or large size production has not been achieved yet.