Exciton polariton spectra and carrier effective masses in ZnO single crystals
| Autor: | N. N. Syrbu, Veaceslav Ursaki, Ion Tiginyanu, Emil Rusu, V.V. Zalamai |
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| Rok vydání: | 2004 |
| Předmět: |
Materials science
Photoluminescence Condensed Matter::Other Exciton Binding energy Cyclotron resonance Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Effective mass (solid-state physics) Excited state Polariton Electrical and Electronic Engineering Atomic physics Biexciton |
| Zdroj: | Physica B: Condensed Matter. 353:111-115 |
| ISSN: | 0921-4526 |
| Popis: | Photoreflectivity and photoluminescence spectra in the region of exciton resonance were measured in ZnO single crystals. A, B, and C exciton binding energies were determined from the energy position of the ground and excited exciton states. Electron and hole effective masses were determined from the fitting of the reflectivity contour to the experimental spectrum. Electron effective masses correlating with those deduced from cyclotron resonance experiments are obtained, provided that values of the background dielectric constant from 6.2 to 6.8 are used. |
| Databáze: | OpenAIRE |
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