Abstract
ZnO oxide is a promising material for optoelectronics because of its wide and direct gap (Eg=3.4 eV). Pure and doped zinc oxide powders of various grain sizes have been synthesized by vaporisation-condensation method using a solar furnace. The initial powders contained from O to 5 In2O3 mol % . X-ray diffraction technique (XRD) has been used to measure the lattice parameter and the grain size as a function of the composition, the results show the appearance of the spinel phase Zn5In2O8 in the micopowders and the decrease of the grain size of nanopowders as the In concentration increases for all considered compositions. The photoluminescence spectra revealed the presence of two main transitions at 3.31 and 3.36 eV, a shift of the excitonic peaks towards the lower energies, a drastic reduction of the exciton bound to donor emission from the doped material and a large broadening of the excitonic emission in In doped nanopowder.
| Original language | English |
|---|---|
| Title of host publication | Cross-Disciplinary Applied Research in Materials Science and Technology - Proceedings of the 1st International Meeting on Applied Physics, (APHYS-2003) |
| Publisher | Trans Tech Publications Ltd |
| Pages | 393-398 |
| Number of pages | 6 |
| ISBN (Print) | 0878499628, 9780878499625 |
| DOIs | |
| State | Published - 2005 |
Publication series
| Name | Materials Science Forum |
|---|---|
| Volume | 480-481 |
| ISSN (Print) | 0255-5476 |
| ISSN (Electronic) | 1662-9752 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Doping
- Nanomaterials
- Photoluminescence
- XRD
- ZnO
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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