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Growth and optical properties of quadrangular zinc oxide nanorods on copper-filled porous silicon


Zinc oxide (ZnO) nanorods with quadrangular morphology have been successfully prepared on a copper-filled porous silicon substrate using a vapor phase transport method. Scanning electron microscopy showed that the diameters of the nanorods were scattered in a range of 100–400 nm and the lengths up to 2 μm. High-resolution transmission electron microscopy and a selected-area electron-diffraction pattern confirmed that the quadrangular ZnO nanorods had a single-crystal wurtzite structure and grew along the (0001) direction. The photoluminescence spectrum under excitation at 325 nm showed an ultraviolet emission at 386 nm and a strong broad green emission at 518 nm at room temperature.

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Correspondence to K. Yu.

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81.05.Dz; 81.05.Rm; 81.07.Bc

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Yu, K., Zhang, Y., Luo, L. et al. Growth and optical properties of quadrangular zinc oxide nanorods on copper-filled porous silicon. Appl. Phys. A 79, 443–446 (2004).

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  • Wurtzite
  • Photoluminescence Spectrum
  • Zinc Oxide
  • Green Emission
  • Wurtzite Structure