Bicrystalline zinc oxide nanowires

✍ Scribed by Ying Dai; Yue Zhang; Yuan Qiang Bai; Zhong Lin Wang

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 394 KB
• Volume: 375
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/s0009-2614(03)00823-6

✦ Synopsis

Bicrystalline ZnO nanowires synthesized are composed of two crystals that form a twin structure parallel to the (0 1 1 4) plane with a growth direction closely parallel to [0 1 1 1] and the (2 1 1 0) side facet. The twin structure is suggested to be a key factor in leading the axial growth of the nanowire. The photoluminescence spectra of the nanowires show a weak UV emission at 385 nm and a strong green emission at 495 nm. The green emission intensity of the nanowires depends on the different level of oxygen vacancies in the ZnO nanowires.