Black phosphorus: The material promises to reduce the size of electronic devices

Scientists have discovered how to make large quantities of black phosphorus nanoparticles, promising a new development era of nanoscale electronics.

In recent years, the material science industry has developed new nanomaterials with a lot of preeminent characteristics compared to conventional materials. These materials have super-small 2-dimensional crystal structure including: graphene, boron nitride, molybdenum disulphite . and the latest material to join the list above: black phosphorus.

Black phosphorus is a material made of phosphorus atoms arranged in two-dimensional thin sheets. Its structure can be imagined as a very small piece of material with a thickness not exceeding one atom. According to experiments for this new material, black phosphorus allows the production of transistors with very good performance, promising a bright future for black phosphorus in the electronics industry.

However, the production of bulk black phosphorus is very difficult. After a long period of research, a new glimmer of hope has opened: scientists at Trinity College Dublin Institute in Ireland have solved the problems of producing black phosphorus.

It is known that black phosphorus is usually composed of many layers just like graphite. So the old way of manufacturing is to split the layers out with other small materials. This method takes a lot of time, so it has a lot of limitations in the production of large quantities.

Therefore, Damien Hanlon, the general engineer, offers a new solution. Instead of splitting the phosphorus block in the traditional way, the scientists placed a block of black phosphorus in a soluble solution and applied it to a mass of material using mechanical waves to separate pieces of material from the bulk.

The result is a large number of plates in the solution, scientists will use more centrifuges to filter these materials according to the size suitable for each application. The quality of these plates is very high, with very small thicknesses of only a few atoms. Mr. Hanlon said: ' The method of splitting sheets using liquid is a very effective way to produce nano plates in very large quantities'.

The solution used to 'split' the material is N-cyclohexyl-2-pyrrolidone or abbreviated as CHP . The black phosphorus nanotubes have a problem that they disintegrate very quickly when exposed to oxygen or air, so thanks to this solution the surface of the sheet materials is covered and therefore they last longer. a lot of.

Successful production of large quantities of black phosphorus opens up development opportunities for many practical applications. Physicists can take advantage of the characteristics of black phosphorus to make electronic components like very small transistors. Materials developers can use black phosphorus to strengthen other materials.

An experiment shows that, with the appearance of black phosphorus, a PVC film can double the strength and increase the tensile strength up to 6 times. On the other hand, with density-dependent non-linear phosphor response, black phosphorus is even better than graphene.

With these capabilities of new materials, in the future will promise many technological improvements for many manufacturing industries. We may have chips with smaller transistor technology, we might have better synthetic materials, optical devices with more advantages. Graphene once caused 'fever' for the community with its excellent properties, black phosphorus is a new boost for the technology industry that the material industry brings.