Direct observation of charge-carrier capture in an array of self-assembled InAs/GaAs quantum dots |
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| Authors: | V I Zubkov I S Shulgunova A V Solomonov M Geller A Marent D Bimberg A E Zhukov E S Semenova V M Ustinov |
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| Affiliation: | 1.Electrotechnical University,St. Petersburg,Russia;2.Institut für Festk?rperphysik,Technische Universit?t,Berlin,Germany;3.Ioffe Physicotechnical Institute,Russian Academy of Sciences,St. Petersburg,Russia |
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| Abstract: | In this work, charge-carrier capture by an array of self-assembled InAs/GaAs quantum dots was directly observed for the first time by capacitance recharge. It is proposed to process the obtained transient-capture data by a similar method to that used for emission, by the box-car method. The capture activation energies are determined and compared with the emission activation energies. |
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