Composite having semiconductor structure including a nanocrystalline core and shell embedded in a matrix

A method of fabricating a composite, the method comprising:

• forming a plurality of semiconductor structures, the forming of each semiconductor structure comprising:
• forming an anisotropic nanocrystalline core comprising a first semiconductor material;
• forming a nanocrystalline shell from a second, different, semiconductor material to completely surround the anisotropic nanocrystalline core, wherein the nanocrystalline shell has a center, wherein the nanocrystalline shell extends in a first direction along a first axis and the anisotropic nanocrystalline core is disposed off-center with respect to the nanocrystalline shell in the first direction along the first axis, wherein the nanocrystalline shell extends in a second direction along a second axis orthogonal to the first axis and the anisotropic nanocrystalline core is further disposed off-center with respect to the nanocrystalline shell in the second direction along the second axis, wherein the nanocrystalline shell is longer in the first direction than in the second direction, and wherein the anisotropic nanocrystalline core and the nanocrystalline shell form a quantum dot;
• and
• forming an insulator layer encapsulating the nanocrystalline shell and anisotropic nanocrystalline core;
• and
• embedding the plurality of semiconductor structures in a matrix material.