Back to results
US 2023/0323200 A1Published application
Macromolecular ammonium and guanidinium halides for tuning color of perovskite nanocrystals
AssigneeUniversity of Massachusetts
InventorsTodd Emrick, Christopher Cueto
Life of this patent
Estimating the term…
Abstract
A composition includes a plurality of lead halide perovskite nanocrystals and an ammonium halide-containing copolymer or a guanidinium halide-containing copolymer. The ammonium halide-containing copolymer and guanidinium halide-containing copolymer can include repeating units defined herein. The composition can be particularly useful for color tuning perovskite nanocrystals, and can be well-suited for light emitting applications, including light emitting diodes.
Claims20
A composition comprising:
- a plurality of lead halide nanocrystals;
- and
- an ammonium halide-containing copolymer comprising 1 to 10 mole percent of ammonium halide-containing repeating units or a guanidinium halide-containing copolymer comprising 1 to 10 mole percent of guanidinium halide-containing repeating units.
A method of making a composition, the method comprising:
- combining
- a plurality of lead halide nanocrystals;
- and
- an ammonium halide-containing copolymer comprising ammonium-halide containing repeating units in an amount of 1 to 10 mole percent or a guanidinium halide-containing copolymer comprising guanidinium halide-containing repeating units in an amount of 1 to 10 mole percent,
- under conditions effective to provide the composition.
2 more elements
Dependencies are inferred from the claim text.