Disordering of the ZnCdSe single quantum well structure by Cd diffusion
| Autor: | Masayuki Momose, Shinichi Nakatsuka, A. Taike, Masahiko Kawata, Jun Gotoh |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Diffraction
Secondary ion mass spectrometry Condensed Matter::Materials Science Laser linewidth Photoluminescence Physics and Astronomy (miscellaneous) Condensed matter physics Annealing (metallurgy) Chemistry Superlattice Analytical chemistry Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Quantum well |
| Zdroj: | Applied Physics Letters. 69:3572-3574 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.117210 |
| Popis: | The effects of annealing on a ZnCdSe single quantum well (SQW) structure with ZnCdSSe/ZnSSe superlattice optical guiding layers are investigated. X‐ray diffraction and photoluminescence (PL) measurements showed disordering of a ZnCdSSe/ZnSSe superlattice after annealing at about 500 °C. The PL peak energy of the SQW shifted to the higher energy side, and the linewidth narrowed in the sample annealed at 300 °C. Cadmium diffusion was confirmed by secondary ion mass spectrometry. We found that the disordering of the ZnCdSSe/ZnSSe superlattice and the changes in the emissions from the SQW were due to the Cd diffusion. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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