Abstract
The strain-induced piezoelectric polarization and the spontaneous polarization can be reduced effectively using the applied electric field in the CdZnO/ZnMgO quantum well (QW) structure with high Cd composition. That is, optical properties as a function of internal and external fields in the CdZnO/ZnMgO QW with various applied electric field result in the increased optical gain due to the fact that the QW potential profile is flattened as a result of the compensation of the internal field by the reverse field as confirmed. These results demonstrate that a high-performance optical device operation can be realized in CdZnO/MgZnO QW structures by reducing the droop phenomenon.
| Original language | English |
|---|---|
| Pages (from-to) | 1550-1552 |
| Number of pages | 3 |
| Journal | Physica B: Condensed Matter |
| Volume | 407 |
| Issue number | 10 |
| DOIs | |
| State | Published - 15 May 2012 |
Keywords
- Applied electric field
- Internal field
- Optical gain
- Quantum well
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