Abstract
Direct evidence for In-segregation in InGaN/GaN quantum-well structures is given via highly spatially resolved energy dispersive x-ray analysis performed in a dedicated scanning transmission electron microscope. The In fluctuations become increasingly pronounced in the vicinity of dislocations. The latter assist In diffusion and cause severe Ga/In intermixing.
| Original language | English |
|---|---|
| Pages (from-to) | 1600-1602 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 76 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 20 Mar 2000 |
| Externally published | Yes |