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In December last year, the graphite-based lithium-ion battery that Huawei had launched attracted a great deal of attention. Graphene materials known as “black gold†began to show its unique charm and gradually realize commercial use. This is not only true for graphene, but researchers have also used graphene to make OLED electrodes.
In fact, people in the industry generally believe that graphene is most likely to be used in large scale in the OLED industry in the future. Graphene is characterized by high image quality, flexibility, thinness, high contrast and low energy consumption. It can create excellent touch panel materials with excellent hardness, excellent electrical conductivity, flexible touch, and super transparency. The researchers used graphene to create OLED electrodes is a major breakthrough.
According to media reports, the size of the electrode attached to the OLED is approximately 2cm x 1cm (1/2 inch x 1/4 inch). It is fabricated using a chemical vapor deposition (CVD) process in which methane and hydrogen are pumped into a vacuum chamber. It is heated to 800°C (1,472°F). The two gases react chemically and form graphene atoms on the surface when the methane dissolves in the copper. Once the layer is fully formed, the entire device is allowed to cool, a protective polymer sheet is applied, and the copper is then chemically etched away to reveal a monoatomic layer of pure graphene.
Dr. Beatrice Beyer, Head of the FEP program at Fraunhofer Organic Electronics, Electron Beam and Plasma Technology, said: “This is a real breakthrough in the research and integration of extremely demanding materials. Although this is not the first flexible display to use graphene in its construction. , but it introduced OLED technology for the first time, taking a big step towards full-color screens and fast response times."
The China Graphene Industry Alliance stated that the current global graphene production capacity will reach 100 tons and will reach 1,000 tons in the next 5-10 years. By 2020, the global graphene market will exceed 100 billion yuan.
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