Abstract
Pure and Sb2O3 (0 to 5% molar fraction) doped ZnO nanophases were synthesized using a sublimation-condensation method in a solar furnace. The initial and final powders were characterized by X-ray diffraction (XRD) and photoluminescence (PL) techniques. XRD results showed no significant change in the lattice parameters and the presence of a new phase Zn 7O2Sb12 in the highly doped micropowders but not in the nanopowders. The photoluminescence spectra showed a strong donor-acceptor pair (DAP) emission in the pure untreated ZnO micropowder which is drastically reduced in pure and doped nanopowders. The donor-bound excitonic band (DX) includes three well resolved peaks in the PL spectra of the doped micropowders while the spectra of doped nanopowders showed a broader band. Furthermore, the free exciton emission was absent in all doped samples.
| Original language | English |
|---|---|
| Title of host publication | NANOTECHNOLOGY AND ITS APPLICATIONS |
| Subtitle of host publication | First Sharjah International Conference on Nanotechnology and Its Applications |
| Pages | 172-176 |
| Number of pages | 5 |
| DOIs | |
| State | Published - 2007 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 929 |
| ISSN (Print) | 0094-243X |
| ISSN (Electronic) | 1551-7616 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Nanopowders
- Photoluminescence
- XPS
- XRD
- ZnO
ASJC Scopus subject areas
- General Physics and Astronomy
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