What are the applications of few-layer graphene?

Few-layer graphene overview

Few-layer graphene refers to a type of periodic close stacking of 3-10 layers of carbon atoms in a benzene ring structure (ie, a hexagonal honeycomb structure), through different stacking methods (including ABC stack, ABA stack, etc.) Two-dimensional carbon materials. A novel carbonaceous material with two-dimensional structure of single-layer graphene powder. Graphene powder has excellent electrical, thermal and mechanical properties.

Applications of few-layer graphene

With the gradual breakthrough of mass production and large-scale problems, the industrial application of graphene is accelerating. Based on existing research results, the first commercial applications may be mobile devices, aerospace and new energy. battery field. Graphene has special significance in fundamental research in physics. It enables some quantum effects that were previously only demonstrated theoretically to be experimentally verified. In 2D 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, they must be described by relativistic quantum mechanics, giving theoretical physicists a way to New research direction: Some experiments that would otherwise have to be done in giant particle accelerators can be done in small labs with graphene. The zero-gap semiconductor is mainly single-layer graphene, and this electronic structure can seriously affect the action of gas molecules on its surface. The results of graphene hydrogenation and oxidation reactions demonstrate the enhanced surface activity of monolayer graphene compared to bulk graphite, suggesting that the electronic structure of graphene can tune its surface activity. In addition, through the induction of gas molecule adsorption, the electronic structure of graphene can be changed accordingly, not only changing the carrier concentration, but also doping different graphenes.

1. Sensors

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

2. Transistor

Graphene can be used to make transistors. Due to the high stability of the graphene structure, the transistor can still work stably at the scale of a single atom. In contrast, current silicon-based transistors lose their stability on a scale of about 10 nanometers; the ultra-fast reaction rate of electrons in graphene to external fields allows transistors made from it to reach very high operating frequencies. For example, IBM announced in February 2010 that it would increase the operating frequency of graphene transistors to 100GHz, i.e. exceeding silicon transistors of the same size.

The price of few-layer of graphene

The price of few-layer graphene will change randomly with the production cost, transportation cost, international situation, exchange rate, and the supply and demand of the few-layer graphene market. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for multi-layer graphene, please feel free to send an inquiry to get the latest price of multi-layer graphene.

Few Layer Graphene Suppliers

As a global supplier of few-layer graphene, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.) high-purity targets, functional ceramics and structural devices, and provides OEM services.