Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/439
Title: Growth and Properties of Ultra-Violet Emitting Aligned Zinc Oxide Nanocones with Hexagonal Caps
Authors: Ahmad, Umar
Ali, Al. Hajry
A, A. Al-Ghamdi
S, Al-Heniti
Keywords: Growth and Properties of Ultra-Violet Emitting Aligned Zinc Oxide Nanocones with Hexagonal Caps
Issue Date: 2010
Abstract: Ultraviolet-emitting, single-crystalline aligned zinc oxide (ZnO) nanocones with hexagonal caps were grown on silicon substrate via simple non-catalytic thermal evaporation process. High-purity metallic zinc powder and oxygen were used as source materials for zinc and oxygen, respectively. The detailed structural characterizations confirmed that the formed products are single-crystalline, possess a wurtzite hexagonal phase and grown along the c-axis direction. Raman-active optical-phonon E2high mode at 437 cm-1 with sharp and strong UV emission at 385 nm in room-temperature photoluminescence (PL) spectrum demonstrated that the as-grown ZnO nanocones with hexagonal caps possess good-crystal quality with the excellent optical properties. Finally, a plausible growth mechanism for the formation of as-grown ZnO nanocones with hexagonal caps was also proposed.
URI: http://hdl.handle.net/123456789/439
Appears in Collections:Physics



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.