Patent ID: 7964278
Filing Date: 2011-06-21
Classification: B82Y,C09K,C30B,H01L,H01S,Y10T

Abstract:
1. A core/multishell semiconductor nanocrystal, comprising: a core material comprising a III/V compound; and at least two shell materials, comprising wherein the nanocrystal exhibits a typed band offset and luminescence at a wavelength from about 400 to about 1600 nm, and wherein a band gap of the core material is less than a band gap of the first, second and any subsequent shell materials, the band gap of the first shell material is larger than the band gap of the core material and lower than the band gap of subsequent shell materials, and the band gap of the second or any subsequent shell material is larger than that of the first or preceding shell material and lower than the band gap of any subsequent shell materials.