Yun Hua Tang

US Patent:

20120267605, Oct 25, 2012

Filed:

Mar 23, 2012

Appl. No.:

13/428516

Inventors:

Jiatao Zhang - Beijing, CN
Yun Tang - Cambridge MA, US
Min Ouyang - Kensington MD, US

Assignee:

University of Maryland, College Park - College Park MD

International Classification:

H01L 29/267
H01L 21/20
B82Y 99/00
B82Y 40/00

US Classification:

257 12, 438478, 977932, 977890, 257E29081, 257E21461

Abstract:

The present invention is directed to a novel synthetic method for producing nanoscale heterostructures, and particularly nanoscale heterostructure particles, rods and sheets, that comprise a metal core and a monocrystalline semiconductor shell with substantial lattice mismatches between them. More specifically, the invention concerns the use of controlled soft acid-base coordination reactions between molecular complexes and colloidal nanostructures to drive the nanoscale monocrystalline growth of the semiconductor shell with a lattice structure incommensurate with that of the core. The invention also relates to more complex hybrid core-shell structures that exhibit azimuthal and radial nano-tailoring of structures. The invention is additionally directed to the use of such compositions in semiconductor devices.