Abstract
Zinc oxide (ZnO) nanostructures have been obtained by thermal oxidation of DC- sputtered Zinc film (Zn) above the melting temperature of Zinc. The zinc film is directly deposited on the glass substrate or on a ZnO layer pre-deposited on the glass by DC reactive plasma. The films were characterized by X-ray Diffraction before and after oxidation treatment. Field Emission Scanning Electron Microscopy (FE-SEM) revealed the formation of needlelike and nanostructured network. The optical properties of the obtained nanostructures were studied using UV-VIS-NIR spectrophotometer. The results showed that the presence of pre-deposited ZnO layer on the glass substrate improves significantly the transmittance of the obtained layered structure. Photoluminescence results showed the presence of a weak near band edge emission at 3.35 eV and a defect band which is much broader than that observed in pure Zinc Oxide.
| Original language | English |
|---|---|
| Pages (from-to) | 1377-1379 |
| Number of pages | 3 |
| Journal | Physica Status Solidi (C) Current Topics in Solid State Physics |
| Volume | 8 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Apr 2011 |
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Keywords
- Dc-sputtering
- Light trapping
- Nanostructures
- Thermal oxidation
- ZnO
ASJC Scopus subject areas
- Condensed Matter Physics