Production of nano supercapacitors using nanoparticles ( a piezoelectric and ferroelectric material)
Researcher and author: Dr. ( Afshin Rashid)
Note: Production of nano supercapacitors using nanoparticles that can be polarized so that electrical energy can be stored. The multi-layer technology of nano structure (solid state) is a known dielectric material that is used in nano supercapacitors because it is a piezoelectric and ferroelectric material. In this work, by creating passive filters, the storage capability between different types of this nano They provide electrical layers.
The amount of electrical properties in solid materials ( nano supercapacitors) is very diverse. Based on the amount of resistance ( nano supercapacitors) against the passage of electric current, different materials can be classified into conductive, semi-conductive and insulating categories. This is despite the fact that in superconductors there is a different mechanism to guide electrons. The electrical conductivity of a ( nano-supercapacitor) can be attributed to the number of free electrons that move freely in the material under the influence of an external electric field, as well as the mobility, which is a measure of the ability and speed of the movement of free electrons.
Dielectric properties or electrical insulation in ( nano supercapacitors)
In ( nano-supercapacitors) , the dielectric is an electrical insulator that can be polarized by applying an electric field. In the structure ( nano supercapacitors), the ideal dielectric has no free charge. When a dielectric is placed in an external electric field, the induced free charges that moved to the surface in the conductors and made the charge density and the internal electric field zero, no longer exist. But because the dielectric ( nano supercapacitors) has a limited charge, it cannot be concluded that they have no effect on the electric field placed in it.
Piezoelectric effect or electric pressure effect in ( nano supercapacitors)
One of the unusual features that some ( nano supercapacitors) show is the piezoelectric phenomenon or electric pressure effect . By applying an external force, the dipoles of these ( nano supercapacitors) are stimulated and an electric field is created. Reversing the effect of the force (eg from tensile to compressive) reverses the direction of the field.
The effect of pyroelectricity or the effect of electric pressure in ( nano supercapacitors)
Pyroelectricity is a phenomenon that when heat is applied to a substance, that substance produces electricity. This phenomenon is different from the thermoelectric phenomenon in ( nano supercapacitors). The change in temperature slightly changes the atomic position in the crystal structure, to The way the polar state of the dielectric material ( nano supercapacitors) changes. This polarity change increases the voltage in( nano supercapacitors) .
Conclusion :
Production of nano supercapacitors using nanoparticles that can be polarized so that electrical energy can be stored. The multi-layer technology of nano structure (solid state) is a known dielectric material that is used in nano supercapacitors because it is a piezoelectric and ferroelectric material. In this work, by creating passive filters, the storage capability between different types of this nano They provide electrical layers.
Specialized doctorate in nano-microelectronics