Structured LED devices and component structures with improved efficiency and reduced defects are enabled by the use of micro- or nano-structured features that reduce lattice strain and improve p-doping in inorganic LEDs, and facilitate carrier injection and recombination of OLEDs. The nanostructures can also confine current flow and provide internal light guiding to enhance efficiency and thereby improve device performance.
STATEMENT OF GOVERNMENTAL SUPPORT
 The invention described and claimed herein was made at least in part utilizing funds supplied by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The Government has certain rights in this invention.