Lateral self-aligned p-type in 2O 3 nanowire arrays epitaxially grown on Si substrates

Abstract

Lateral orientated growth of In 2O 3 nanowire (NW) and nanorod (NR) arrays has been achieved by a vapor transport and condensation method on (001) and (111) surfaces of Si substrates. The single crystalline In 2O 3 NWs and NRs were grown along [21̄1̄] in parallel to the Si ±[11̄0] and lying in the substrate plane. The electrical measurements show that the In 2O 3 NWs are p-type semiconductor. By N + doping, the resistivity of the In 2O 3 NWs has been tuned. The lateral self-aligned In 2O 3 NW and NR arrays on Si can offer some unique advantages for fabricating parallel nanodevices that can be integrated directly with silicon technology. © 2007 American Chemical Society.