CVD PREPARED Mn-DOPED ZnO NANOWIRES
| Main Authors: | Phan, T.L., Vincent, R., Cherns, D., Nghia, N.X. |
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| Format: | Article info application/pdf Journal |
| Bahasa: | eng |
| Terbitan: |
Universitas Gadjah Mada
, 2017
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| Subjects: | |
| Online Access: |
http://ajstd.org/index.php/ajstd/article/view/191 http://ajstd.org/index.php/ajstd/article/view/191/186 |
Daftar Isi:
- Mn-doped ZnO nanowires prepared by chemical vapor deposition (CVD) were obtained in the temperature range of 450–500°C. X-ray diffraction patterns, SEM and TEM images indicate that crystals with a hexagonal structure grow along the c axis. At low Mn-doped concentrations, photoluminescence (PL) and Raman scattering (RS) spectra are almost independent of the Mn doping. However, the increase in concentration of Mn above 1.6 at% weakens significantly the PL signal and the RS-lines intensity in the low wavenumber range of 300–480 cm-1, and concurrently increases the RS-lines intensity in the higher wavenumber range of 480-700 cm-1.. Magnetic measurements determined the Curie temperature of Mn-doped ZnO nanowire to be about 37 K.