Report
Temperature and size-dependent suppression of Auger recombination in quantum-confined lead salt nanowires
| العنوان: | Temperature and size-dependent suppression of Auger recombination in quantum-confined lead salt nanowires |
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| المؤلفون: | Rupasov, Valery I. |
| سنة النشر: | 2009 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science |
| الوصف: | Auger recombination (AR) of the ground biexciton state in quantum-confined lead salt nanowires (NWs) with a strong coupling between the conduction and the valence bands is shown to be strongly suppressed, and only excited biexciton states contribute to Auger decay. The AR rate is predicted to be greatly reduced when temperature or the NW radius are decreased, and the effect is explained by decrease in both the population of excited biexciton states and overlap of phonon-broadened single- and biexciton states. Suppression of AR of multiexciton states exhibiting strong radiative decay makes obviously lead salt NWs a subject of special interest for numerous lasing applications. Comment: 4 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.81.041313 |
| URL الوصول: | http://arxiv.org/abs/0911.5002 |
| رقم الانضمام: | edsarx.0911.5002 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.81.041313 |
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