Highly-oriented ZnO nanorods were grown on the fused silica substrates by a thermal CVD technique using Zinc acetylacetonate (Zn(C5H7O2)2). The substrate was heated to 500°C and the vaporization temperature of Zn(C5H7O2)2 was keep at around 135°C. X-ray diffraction and TEM analyses reveal that the nanorods are preferentially oriented toward the c-axis direction. Photoluminescence (PL) and absorption measurements show a strong emission at around 380nm which corresponds to the near band-edge emission of the bulk ZnO. Moreover, the negligible green emission band in PL spectrum and the absence of E1(LO) mode of the ZnO crystal in Raman spectrum indicate a low concentration of oxygen vacancy in the highly-oriented ZnO nanorods.
|Number of pages||9|
|Journal||Materials Research Society Symposium - Proceedings|
|Publication status||Published - 2002 Jan 1|
|Event||Nanophase and Nanocomposite Materials IV - Boston, MA, United States|
Duration: 2001 Nov 26 → 2001 Nov 29
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials