Shape controlled synthesis is typically achieved through a combination of chemical and physical methods. These methods include:
Solvothermal and Hydrothermal Methods: These methods involve the use of solvents at high temperatures and pressures to control the growth of nanoparticles. Seed-Mediated Growth: This technique uses small seed particles as templates to direct the growth of larger nanoparticles into specific shapes. Capping Agents: Molecules that preferentially bind to certain facets of a nanoparticle, inhibiting their growth and promoting the formation of specific shapes. Electrodeposition: A method where an electric current is used to deposit material onto a substrate, allowing for precise control over the shape of the resulting nanoparticles.