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Optical properties of ZnO nanotubes
Author(s) -
Zhai Hongju,
Zheng Jiahong,
Yang Jinghai,
Liu Yang,
Gao Ming
Publication year - 2010
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200900699
Subject(s) - wurtzite crystal structure , raman spectroscopy , hydrothermal circulation , materials science , chemical engineering , nanostructure , hexagonal crystal system , template , zinc , nanotechnology , nanotube , carbon nanotube , crystallography , chemistry , metallurgy , optics , physics , engineering
Abstract Tubular ZnO nanostructures have been obtained via a hydrothermal method at low temperature (90 °C) without any catalysts or templates. The XRD measurement reveals that the tubes are single crystals with hexagonal wurtzite structure. SEM shows that the diameters of ZnO nanotubes ranged from 400 to 550 nm. The Raman and PL spectra indicate that oxygen vacancies or Zn interstitials are responsible for the green emission in the ZnO nanotubes. A possible growth mechanism on the formation of crystalline ZnO nanotubes has been presented. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)