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Low-temperature process and effect of thermal annealing on structural and optical properties of MgO-coated ZnO nanorods
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 2006 |
| Abstract | The effect of thermal annealing on the structural and optical properties of MgO-coated ZnO nanorods structures prepared by solution techniques were investigated with scanning electron microscopy (SEM), X-ray diffraction (XRD), and photoluminescence (PL) measurements. After thermal annealing process, Mg-doped ZnO nanorods have been grown on on silicon substrates buffered with ZnO film. Structural analyses indicate that the nanorods grown on Si substrates are oriented in the c-axis direction and the nanorod possesses the single-crystalline hexagonal structure. No phase separation is observed when the annealing temperature increased to 900 C. The MgO-coating ZnO nanorods annealed at above 800 C showed the alloy formation due to diffusion of the Mg atoms into the ZnO nanorods. PL spectra displayed a blue shift of the near-band-edge emission, indicative of an increase in the band gap of the Zn1-xMgxO alloy. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ir.nctu.edu.tw/bitstream/11536/90103/1/942216E009025.PDF |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
