| abstract |
A semiconductor nanoparticle-based optical conversion layer for use in a lighting device and a lighting device comprising the same. In various embodiments, spherical core / shell seeded nanoparticles (SNPs) or nanorod seeded nanoparticles (RSNPs) are used to form a conversion layer with a high optical density, and a good combination of low reabsorption and small FRET do. In some embodiments, the SNP or RSNP forms the conversion layer without the host matrix. In some embodiments, the SNP or RSNP is embedded in a host matrix such as a polymer or silicon. While showing a combination of excellent optical properties, the conversion layer can be made extremely thin. Illuminators, including SNP or RSNP-based conversion layers, show efficient and well-defined color emissions from energy. |