Manipulating luminescence in semiconductor nanostructures via field-effect-tuneable potentials
| العنوان: | Manipulating luminescence in semiconductor nanostructures via field-effect-tuneable potentials |
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| المؤلفون: | Jörg P. Kotthaus |
| المصدر: | physica status solidi (b). 243:3754-3763 |
| بيانات النشر: | Wiley, 2006. |
| سنة النشر: | 2006 |
| مصطلحات موضوعية: | Condensed Matter::Quantum Gases, Physics, Condensed Matter::Other, Quantum-confined Stark effect, Field effect, Heterojunction, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Condensed Matter Physics, Molecular physics, Franz–Keldysh effect, Electronic, Optical and Magnetic Materials, law.invention, law, Electric field, Atomic physics, Luminescence, Bose–Einstein condensate, Quantum well |
| الوصف: | The luminescence properties of III–V quantum wells under the influence of field-effect-tuneable and laterally modulated potentials are reviewed. Large electric fields generated in the quantum well plane cause a modulation of the quantum well absorption via the Franz–Keldysh effect as well as a reversible separation of optically excited electron–hole pairs. The electron–hole pair separation by field effect can prolong the recombination lifetimes by many orders of magnitude and yields a controllably delayed reemission of luminescence radiation. Dynamic in-plane electric fields caused by the propagation of surface acoustic waves on piezoelectric heterostructures make possible spatially and temporarily delayed luminescence whereas a two-dimensional modulation of the electrostatic potential enables the delayed storage of optical images. Spatial modulation of the quantum confined Stark effect via the out-of-plane electric field is employed to realize tuneable excitonic traps and to study macroscopic transport of long-living, spatially indirect excitons in suitably designed double quantum wells. This is possibly paving the way for the observation of excitonic Bose–Einstein condensation in quantum well structures. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
| تدمد: | 1521-3951 0370-1972 |
| DOI: | 10.1002/pssb.200642196 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::09994045ce9b4f9189af7745148d234e https://doi.org/10.1002/pssb.200642196 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........09994045ce9b4f9189af7745148d234e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15213951 03701972 |
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| DOI: | 10.1002/pssb.200642196 |