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The negatively charged exciton in double-layer quantum dots

✍ Scribed by Wenfang Xie

Publisher
Springer
Year
2000
Tongue
English
Weight
138 KB
Volume
17
Category
Article
ISSN
1434-6036

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Two excitons in double-layer quantum dot
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Using the method of few-body physics, the exact numerical results for the quantum system of two vertically coupled two-dimensional single exciton quantum dots are obtained as a function of the dot size. The results are compared with those of the biexciton in single-layer dots. The dependence of the

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It is known experimentally that stable charged-exciton complexes can exist in low-dimensional semiconductor nanostructures. Much less is known about the properties of such charged-exciton complexes since three-body problems are very difficult to solve, even numerically. Here we introduce the correla

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✍ Y. Shiraki; K. Ohta πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 241 KB

Negatively-charged excitons were assigned in AlGaAs/GaAs modulation-doping structures (MOD) with AlInAs quantum. Peaks observed at zero bias decreased or disappeared with increasing negative bias and new peaks were seen to grow up. These two-group peaks were reasonably assigned respectively as nega