Molecular drift to stabilize nanoparticles (PhD in nano-microelectronics)
Researcher and author: Dr. ( Afshin Rashid)
Note: Amplified nanoparticles due to their specific surface area and high surface energy, adhere to each other and form a mass. This phenomenon leads to the loss of properties due to the small size of these particles.
Stabilizers are used to prevent the accumulation of nanoparticles in the synthesis stage. Typically, two types of electrostatic and spatial drift methods are used to stabilize nanoparticles. In the first method, ions are used to stabilize nanoparticles. These ions are adsorbed to the particles and form an electrically charged layer around the nanoparticles, resulting in the molecular drift of the nanoparticles produced due to their specific surface area and high surface energy, forming a mass. This phenomenon leads to the loss of properties due to the small size of these particles. Stabilizers are used to prevent the accumulation of nanoparticles during the synthesis step. Usually, two new electrostatic and spatial drift methods are used to stabilize nanoparticles. You see a pattern of two methods of stabilizing particles. In the first method, ions are used to stabilize nanoparticles.
In the second method, large molecules are used to stabilize the nanoparticles. Large molecules adhere to the surface of the particles and occupy space around the particle. As the particles get closer to each other, these molecules become entangled and prevent the particles from sticking together, preventing the particles from accumulating. In the second method, large molecules are used to stabilize the nanoparticles. Large molecules adhere to the surface of the particles and occupy space around the particle. As the particles get closer to each other, these molecules become entangled and prevent the particles from sticking together. In the propagation of nanoparticles by electrostatic reduction method, molecular drift method is usually used to stabilize the particles. One of the most influential parameters on size in the electrostatic synthesis of nanoparticles is the concentration of the precursor. The higher the concentration of the precursor, The larger the particle size produced, and conversely, the lower the precursor concentration , the smaller the particle size.
Conclusion:
The resulting nanoparticles use different stabilizers. Depending on the electrostatic conditions and molecular momentum in the nanoparticles, each stabilizer can have advantages over other particle stabilizers in the multiplication of nanoparticles. To prevent the accumulation of nanoparticles, the concentration of stabilizers must be within a certain range. Too little concentration of stabilizer can not prevent the accumulation of nanoparticles, and on the other hand, high concentration of stabilizer disrupts the production of nanoparticles.
Researcher and author: Dr. ( Afshin Rashid)
PhD in Nano-Microelectronics