| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1553662 | Superlattices and Microstructures | 2013 | 6 Pages |
Abstract
Both theoretical calculation and room temperature photoluminescence (PL) measurements were employed to investigate the optical properties of ZnO/Mg0.9Zn0.1O multi-quantum wells (MQW). Firstly, we calculated the ground state energies of the excitons located in ZnO MQWs through a facile Kronig-Penney model. A clear increase of the excitonic energies was observed with narrowing the well layers or broadening the barrier regions due to the well-known quantum confinement effects (QCE). Besides, it was found that the dependence of exciton transition energies on barrier thickness could be fitted by a simple Arrhenius formula. Afterwards, a few PL measurements have been done over those MQWs, which exhibited a good agreement with theoretical analysis.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Xiuquan Gu, Yulong Zhao, Yinghuai Qiang,