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1. WO2022008882 - PRODUCTION OF LUMINESCENT PARTICLES

Publication Number WO/2022/008882
Publication Date 13.01.2022
International Application No. PCT/GB2021/051689
International Filing Date 02.07.2021
IPC
C09K 11/02 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
02Use of particular materials as binders, particle coatings or suspension media therefor
C09K 11/56 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
08containing inorganic luminescent materials
56containing sulfur
C09K 11/70 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
08containing inorganic luminescent materials
70containing phosphorus
C09K 11/88 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
08containing inorganic luminescent materials
88containing selenium, tellurium or unspecified chalcogen elements
Applicants
  • KING'S COLLEGE LONDON [GB]/[GB]
Inventors
  • GREEN, Mark Alan
  • WANG, Yi
Agents
  • COLE, Paul
Priority Data
2010344.606.07.2020GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PRODUCTION OF LUMINESCENT PARTICLES
(FR) PRODUCTION DE PARTICULES LUMINESCENTES
Abstract
(EN) Metal phosphide nanoparticles or quantum dots e.g. of InP or InZnP are produced by reacting a precursor of the metal component with a phosphide precursor which is phosphine carboxamide (PH2C(O)NH2). The reaction may be carried out in solution e.g. in 1-octadecene containing a capping agent which may be hexadecylamine in an inert atmosphere at a temperature in the range 200-300°C. A shell e.g. of ZnS or ZnSe may be formed on the core, and the resulting nanoparticles may e.g. be incorporated into a QD-LED display, a QD-LED lamp or another article.
(FR) L'invention concerne des nanoparticules ou des points quantiques de phosphure métallique, par exemple en InP ou en InZnP, produits par réaction d'un précurseur du constituant métallique avec un précurseur de phosphure qui est un carboxamide de phosphine (PH2C(O)NH2). La réaction peut être réalisée en solution, par exemple dans du 1-octadécène contenant un agent encapsulant qui peut être l'hexadécylamine dans une atmosphère inerte à une température dans la plage de 200-300°C. Une enveloppe, par exemple en ZnS ou en ZnSe, peut être formée sur le noyau et les nanoparticules résultantes peuvent par exemple être incorporées dans un dispositif d'affichage à DEL à points quantiques, une lampe à DEL à points quantiques ou un autre article.
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