Open AccessTwo-step growth of highly oriented ZnO nanorod arrays
Author(s) -
Wang Ye,
Xu Xiao-Liang,
Xie Wei-Yu,
Wang Zhuang-bing,
Lü Liu,
Yuchao Zhao
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.2582
Subject(s) - nanorod , materials science , optoelectronics , chemical engineering , nanotechnology , engineering
Well aligned ZnO nanorod arrays on Si substrate previously coated with a thin buffer layer of ZnO seeds via radio-frequency magnetron sputtering, which were synthesized by the aqueous solution method. The sample was characterized by scanning electron microscopy, X-ray diffraction, high-resolution transmission electron microscopy and selected area electron diffraction. The results show that ZnO nanorods have good crystal quality are highly oriented and grown along c-axis. The full width at half maximum of the (0002) peaks of the nanorod arrays is only 0.06°. Furthermore, a strong and narrow eigen peak centered at 378nm and very weak emission in visible region due to impurities or defects were observed in the photoluminescence spectra.