Patent #: US12012538B2 / CN110903824A

Inventor: Liang Li, Bo Wang

Highlights

• This US patent protects a solvent-free high-temperature route for preparing luminescent composites from fluorescent material precursors and carrier materials.
• The method targets high quantum efficiency, high color purity, and good photothermal stability for photoluminescent devices, lasers, and nonlinear optical devices.

Summary

This patent protects a practical manufacturing route for luminescent composite materials. Instead of relying on large amounts of organic solvent, the method uses high-temperature calcination after mixing a fluorescent precursor with a carrier. This makes the process simpler, lower-cost, and more scalable than many colloidal nanocrystal syntheses. The resulting materials are positioned for high-performance photoluminescent technologies where brightness, spectral purity, and operational stability are all needed. The invention fits directly into Professor Li’s strategy of bringing quantum-dot-like optical properties into more robust, manufacturing-friendly composite materials.

Patent citation: L. Li and B. Wang, “Luminescent composite material and preparation method thereof,” U.S. Patent US12012538B2.