Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2010-11-15

Journal: 9th Chinese International Nanoscience and Technology Symposium

Included Journals: Scopus、CPCI-S、EI、SCIE

Volume: 127

Issue: 1

Page Number: 134-140

ISSN: 1058-4587

Key Words: Nanostructures; semi-sealed quartz tube; growth mechanism; oxygen concentration

Abstract: The tetrapod-like and two different kinds of dandelion-like structures had been controlledly synthesized on c-plane sapphire substrates by a simple chemical vapor deposition method. In the growing process, a semi-sealed quartz tube was utilized to create spatial variation of oxygen concentration. X-ray diffraction and scanning electron microscopy were employed to analyze crystal structures and morphologic characteristics of ZnO nanostructures synthesized in different regions. It is suggested that oxygen concentration is the critical experimental parameter for controlling and modifying the morphology during the nucleation and growth, which will lead to different nanostructures.