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arXiv · 1003.6040

Dynamics of Charge Leakage From Self-assembled CdTe Quantum Dots

Łukasz Kłopotowski·Mateusz Goryca·Tomasz Kazimierczuk·Piotr Kossacki·Piotr Wojnar·Grzegorz Karczewski·Tomasz Wojtowicz
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Abstract

We study the leakage dynamics of charge stored in an ensemble of CdTe quantum dots embedded in a field-effect structure. Optically excited electrons are stored and read out by a proper time sequence of bias pulses. We monitor the dynamics of electron loss and find that the rate of the leakage is strongly dependent on time, which we attribute to an optically generated electric field related to the stored charge. A rate equation model quantitatively reproduces the results.

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Łukasz Kłopotowski, Mateusz Goryca, Tomasz Kazimierczuk, Piotr Kossacki, Piotr Wojnar, Grzegorz Karczewski, Tomasz Wojtowicz. 2010-03-31. Dynamics of Charge Leakage From Self-assembled CdTe Quantum Dots. https://doi.org/10.1063/1.3430524

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