Industrial Preparation of High-Quality Inorganic Nanocrystals

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Researchers
Yunwei Charles Cao
Managed By
Lenny Terry
Assistant Director 352-392-8929
Patent Protection
US Patent 9,406,759

Produces a Large Number and Variety of Nanocrystals, Decreasing Manufacturing Costs

Nanotechnology is sparking revolutionary advances in material sciences, optoelectronics, biology, and medicine. With the growing interest in applications based on nanoscale materials comes a need for industrial-scale synthesis of colloidal semiconductor nanocrystals with uniform size and shape, and well-confined surface passivation. To date, the most successful and widely used nanocrystal synthesis relies on rapid precursor injection. However, because of the difficulty of precursor injection, it is difficult to scale up such a synthesis for making nanocrystals in large quantities (e.g., tens to hundreds of kilograms). Existing techniques are unable to produce nanocrystals in large numbers. This technique produces a wide variety of high-quality nanocrystals (such as quantum dots) in mass quantities.

Applications

Large-scale preparation of high-quality inorganic nanocrystals

Advantages

  • Synthesis technique allows mass production of inorganic nanocrystals, decreasing the present cost of manufacturing nanomaterials
  • Controlling the growth rate produces nanocrystals of uniform size and shape, which enables broad commercial application

Technology

This technique follows a new approach to control nanocrystal formation, and it eliminates the need for rapid precursor injection. By controlling the growth rate of nanocrystals, this method can lead to the synthesis of monodispersed nanocrystals in various sizes and shapes. Because this synthesis technique exhibits very stable reaction kinetics, it enables industrial preparation of inorganic nanocrystals. These inorganic nanocrystals are stable and will not fade like organic dyes that are typically used in biological labeling. So far, these nanocrystals have become vital in applications like biological labeling, LEDs, lasers, solar cells, and digital medical imaging.