Abstract
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.
Original language | English |
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Pages (from-to) | 49-57 |
Number of pages | 9 |
Journal | Materials Research Society Symposium - Proceedings |
Volume | 703 |
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