High Resolution Transmission Electron Microscope Analysis of CdSe/ZnSe Strained Layer Superlattices Grown on InP
✍ Scribed by Y. Nabetani; Y. Kobayashi; T. Kato; T. Matsumoto
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 99 KB
- Volume
- 229
- Category
- Article
- ISSN
- 0370-1972
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✦ Synopsis
The lattice structure of CdSe/ZnSe strained layer superlattices grown on InP is investigated by cross-sectional high resolution electron microscopy. The Cd composition is obtained by lattice image analysis. The Cd composition is modulated along the growth direction. A gradual change of Cd composition is shown at the CdSe/ZnSe interface. The strain energy calculation shows that the formation of a ZnCdSe layer at the interface almost relieves the strain. X-ray diffraction spectra are simulated using the obtained modulation profile of Cd composition. The simulated results well reproduce experimentally observed spectra.