Level bleaching in a single quantum dot observed by photocurrent spectroscopy

Evelin Beham; Artur Zrenner; Frank Findeis; Max Bichler; Gerhard Abstreiter

doi:10.1016/S1386-9477(01)00505-7

Level bleaching in a single quantum dot observed by photocurrent spectroscopy

Evelin Beham, Artur Zrenner, Frank Findeis, Max Bichler, Gerhard Abstreiter

Natural Sciences

Walter Schottky Institut

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Level bleaching in the ground state of a single In_0.5Ga_0.5As quantum dots was investigated. Photocurrent spectroscopy was used and results were explained by a rate equation model for the quantum dot. Results showed that the photocurrent responses of the dot's ground state shows a characteristic peak which is due to resonant quantum dot absorption. With increase in excitation power the peak rises until it becomes saturated.

Original language	English
Pages (from-to)	139-142
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	13
Issue number	2-4
DOIs	https://doi.org/10.1016/S1386-9477(01)00505-7
State	Published - Mar 2002

Keywords

Photocurrent
Single self-assembled quantum dots
Tunneling time

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abstract = "Level bleaching in the ground state of a single In0.5Ga0.5As quantum dots was investigated. Photocurrent spectroscopy was used and results were explained by a rate equation model for the quantum dot. Results showed that the photocurrent responses of the dot's ground state shows a characteristic peak which is due to resonant quantum dot absorption. With increase in excitation power the peak rises until it becomes saturated.",

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AU - Zrenner, Artur

AU - Findeis, Frank

AU - Bichler, Max

AU - Abstreiter, Gerhard

PY - 2002/3

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N2 - Level bleaching in the ground state of a single In0.5Ga0.5As quantum dots was investigated. Photocurrent spectroscopy was used and results were explained by a rate equation model for the quantum dot. Results showed that the photocurrent responses of the dot's ground state shows a characteristic peak which is due to resonant quantum dot absorption. With increase in excitation power the peak rises until it becomes saturated.

AB - Level bleaching in the ground state of a single In0.5Ga0.5As quantum dots was investigated. Photocurrent spectroscopy was used and results were explained by a rate equation model for the quantum dot. Results showed that the photocurrent responses of the dot's ground state shows a characteristic peak which is due to resonant quantum dot absorption. With increase in excitation power the peak rises until it becomes saturated.

KW - Photocurrent

KW - Single self-assembled quantum dots

KW - Tunneling time

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ER -

Level bleaching in a single quantum dot observed by photocurrent spectroscopy

Abstract

Keywords

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