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The Main Application Areas of Graphene

wallpapers Industry 2020-08-18

With the gradual breakthrough of mass production and large-size problems, the industrial application of graphene is accelerating. Based on existing research result, the first commercial applications may be mobile devices, aerospace, and new energy—battery field.

Graphene has a special significance for basic research in physics. It enables some quantum effects that can only be demonstrated theoretically before can be verified through experiments. In two-dimensional graphene, the mass of electrons does not seem to exist. This property makes graphene a rare condensed matter that can be used to study relativistic quantum mechanics-because massless particles must move at the speed of light. Therefore, relativistic quantum mechanics must be described, which provides theoretical physicists with a new research direction. Some experiments that initially needed to be carried out in giant particle accelerators can be carried out with graphene in small laboratories.

Zero energy gap semiconductors are mainly single-layer graphene, and this electronic structure will seriously affect the role of gas molecules on its surface. Compared with bulk graphite, the function of single-layer graphene to enhance the surface reaction activity is shown by the results of graphene hydrogenation and oxidation reactions, indicating that graphene's electronic structure can modulate the surface activity. Besides, the electronic structure of graphene can be correspondingly changed by the induction of gas molecule adsorption, which not only improves the concentration of carriers but also can be doped with different graphenes.

Graphene can be made into a chemical sensors. This process is mainly done through the surface adsorption properties of graphene. According to the research of some scholars, the sensitivity of graphene chemical detectors can be compared with the limit of single-molecule detection. The unique two-dimensional structure of the graphene makes it very sensitive to the surrounding environment. Graphene is an ideal material for the electrochemical biosensors. Sensors made of graphene have excellent sensitivity for detecting dopamine and glucose in medicine.

Due to the characteristics of high conductivity, high strength, ultra-light and thin, the application advantages of graphene in the aerospace and military industry are also extremely prominent. In 2014, in the United States, NASA developed a graphene sensor used in the aerospace field, which can detect trace elements in the atmosphere at high altitudes and structural defects on spacecraft. Graphene will also play a more prominent role in potential applications such as ultralight aircraft materials.

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Tag: Graphene