Hybrid Lighting Phosphors with High Quantum Efficiency, and Enhanced Thermal and Photostability

                                                                              This rare-earth element-free invention can be used in LEDs to generate the entire visible spectrum


Invention Summary:

The use of rare earth elements in the phosphor coating of light-emitting diodes (LEDs) and compact fluorescent lamps (CFLs) raises environmental concerns; hence it requires alternative solutions to the current technology.

Rutgers researchers have developed a new family of group I-VII based inorganic-organic hybrid phosphors that possess high luminescence efficiency and enhanced thermal and photo stability. The synthesis is done using a two-step solution-based precursor approach which forms an extended network of 1D, 2D, and 3D crystalline structures built on highly emissive copper-iodide molecular clusters. These rare-earth element free phosphors offer high internal quantum yield, and low correlated color temperature. This invention can be used in LED devices to generate the entire visible spectrum, including white, orange, green, blue, and yellow colors. 

Market Applications:

  • LEDs and CFLs products
  • Horticulture lighting
  • Commercial/ industrial lighting

Advantages:

  • 100% free of rare-earth elements
  • High internal quantum yield of up to 96% (white phosphors)
  • Correlate color temperature as low as 2492 K (white phosphors).
  • High luminescence efficiency thermal and photo stability
  • Comparable performance to commercial phosphors

Publicationshttps://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201603444

Intellectual Property & Development Status: Patents issued in US (US 2020/0263085 A1) and CN (CN 110785424), pending in EP (EP 3619218 A1). Available for licensing and/or research collaboration. For any business development and other collaborative partnerships contact marketingbd@research.rutgers.edu

Patent Information:
Licensing Manager:
Brice Kessler
Rutgers, The State University of New Jersey
 
Business Development:
Eusebio Pires
Senior Manager, Technology Marketing & Business Development
Rutgers, The State University of New Jersey
ep620@research.rutgers.edu
Keywords:
LEDs
Photonics and photovoltaics