| abstract |
Semiconductor nanoparticles which are core/shell type semiconductor nanoparticles each comprising a core including In and P and one or more shell layers, characterized in that the semiconductor nanoparticles further contain at least Zn, Se, and a halogen and that in the semiconductor nanoparticles, the molar ratios of the P, Zn, Se, and halogen to the In, in terms of atomic amount, are: P, 0.20-0.95; Zn, 11.00-50.00; Se, 7.00-25.00; and halogen, 0.80-15.00.　According to the invention, it is possible to provide semiconductor nanoparticles which are core/shell type semiconductor nanoparticles each comprising a core including In and P and a shell comprising Zn and Se as main components and which have a high quantum efficiency, a small half band width, and a small Stokes shift. |