Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1791079 | Journal of Crystal Growth | 2013 | 4 Pages |
Abstract
InxGa1−xNInxGa1−xN/GaN quantum well (QW) structures grown on c-plane surfaces for long wavelength laser structures have been investigated. We found that temperature ramping in the barriers improves the layer structure in avoiding V-pit formation and improves the homogeneity of indium incorporation. In choosing proper temperature profiles degradation of the QWs can be avoided. We demonstrate optical gain for wavelengths larger than 500 nm using structures with an active zone grown in such way.
► InGaN/GaN quantum wells with high indium content for long wavelength laser structures. ► Homogeneous indium incorporation is critical. ► Optical gain in green reached. ► Indium not easily incorporated beyond 25%.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
U. Rossow, A. Kruse, H. Jönen, L. Hoffmann, F. Ketzer, T. Langer, R. Buss, H. Bremers, A. Hangleiter, T. Mehrtens, M. Schowalter, A. Rosenauer,