PHOSPHOR-NANOPARTICLE COMBINATIONS

摘要

Compositions of matter comprising a seeded semiconductor nanoparticle material and a non-quantum confined phosphor particle material for use in light conversion and light conversion layers comprising such compositions. In various embodiments, spherical core/shell seeded nanoparticles (SNPs) or nanorod seeded nanoparticles (RSNPs) are combined with a phosphor material to provide a composition of matter with small re-absorbance of the phosphor emission in both green and red wavelength regions and small re-absorbance of the SNP emission, In some embodiments, the SNPs or RSNPs are encapsulated in a first host material before being mixed with the phosphor particles. In various embodiments, a SNP/RSNP-phosphor mixture or encapsulated SNP/RSNP-phosphor mixture is incorporated in host matrix.

主权项

1. A material composition for use in light conversion comprising:
a) a phosphor material; and b) at least one type of semiconductor seeded nanoparticle (SNP) material having a central emission wavelength (CWL) in the range 580-680 nm, wherein the SNP material comprises rod shaped SNP (RSNP) and is encapsulated in a first host material, and wherein the phosphor material and the RSNP encapsulated in said first host material are mixed together in appropriate selected amount to provide an absorption ratio (AR) of optical absorbance at 455 nm to a maximum value of optical absorbance in the range of 580-700 nm greater than 3.5:1.