Value analysis of five graphene concept stocks:
1. New alkylene carbon materials: The graphene industry layout continues to advance;
2. Midu Energy: Join hands with Zhejiang University to share the graphene feast and deepen its layout in the energy industry;
3. Kangdexin: Update on the progress of the employee stock ownership plan, an international polymer composite materials platform company, maintain a "buy" rating;
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4. Huali Family: "Technology Finance", near space aircraft, a model of deep military-civilian integration, is expected to achieve revolutionary breakthroughs;
5. Fangda Carbon: The ore business is dragging down the company's performance, and we look forward to the product structure Accelerate upgrades.
Extended information:
Graphene, like graphite, belongs to a compound hexagonal lattice. On a two-dimensional plane, each carbon atom is connected by sp2 hybrid orbitals, that is, each carbon Three σ bonds are formed between the atom and its three nearest neighbor carbon atoms. The remaining p electron orbit is perpendicular to the graphene plane and forms π bonds with surrounding atoms. The carbon atoms surround each other to form a regular hexagonal planar honeycomb structure, so that there are only two atoms with different spatial positions on the same atomic plane.
One of the most important properties of graphene is its electron transport properties. Graphene exhibits an unusual integer quantum Hall effect. Its Hall conductance is an odd multiple of the quantum conductance and can be observed at room temperature [1-3]. This phenomenon can be used to prove the quantum mechanics of relativity, which means that the electrons of graphene belong to the scope of application of the Dirac equation.
Graphene is considered to have broad application prospects in transistors - the electrons in it can move sub-micron distances without scattering. This property is important for making transistors that need to switch signals quickly. This new diaphragm could significantly increase the speed of computers. This application prospect has now been confirmed.
Reference materials: web link (Baidu Encyclopedia).