Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1496280 | Optical Materials | 2009 | 4 Pages |
Abstract
Optical properties of ZnMnO layers grown at low temperature by Atomic Layer Deposition and Metalorganic Vapor Phase Epitaxy are discussed and compared to results obtained for ZnMnS samples. Present results suggest a double valence of Mn ions in ZnO lattice. Strong absorption, with onset at about 2.1 eV, is tentatively related to Mn 2+ to 3+ photoionization. Mechanism of emission deactivation in ZnMnO is discussed and is explained by the processes following the assumed Mn 2+ to 3+ recharging.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
M. Godlewski, A. Wójcik-Głodowska, E. Guziewicz, S. Yatsunenko, A. Zakrzewski, Y. Dumont, E. Chikoidze, M.R. Phillips,