| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1793477 | Journal of Crystal Growth | 2010 | 5 Pages |
Abstract
Systematic study of optical properties of undoped and Fe-doped substrates grown by hydride vapor phase epitaxy has revealed a strong dependence of the photoluminescence, transmission, reflectivity and ellipsometric spectra on the Fe-doping level. The changes of the near-band-gap transmission, reflectivity and photoluminescence has been observed and ascribed to the absorption introduced by the density of states tails, and the Fe3+-ions incorporated in the GaN-lattice. Several approaches towards quantifying the Fe-doping level are suggested.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
P. Gladkov, J. Humlíček, E. Hulicius, T. Šimeček, T. Paskova, K. Evans,