Synthesis and optical properties of well-aligned ZnO nanorod array on an undoped ZnO film

Jie, Jiansheng; Wang, Guanzhong; Chen, Yiming; Han, Xinhai; Wang, Qingtao; Xu, Bo; Hou, J. G.
January 2005
Applied Physics Letters;1/17/2005, Vol. 86 Issue 3, p031909
Academic Journal
High-density well-aligned ZnO nanorod array was successfully synthesized on a PLD prepared undoped ZnO film by a catalyst-free method. X-ray diffraction and scanning electron microscopy show that the nanorods are well-oriented perpendicular to the substrate. The photoluminescence from free excitons and Raman spectra of the ZnO nanorods reflect the high purity and nearly defect free structure of nanorods. The well-aligned feature of the nanorod array is attributed to the nanorods’ epitaxial growth from the ZnO film.


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