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Intersubband photoconductivity of self-assembled InAs quantum dots embedded in InP

Author

  • H Pettersson
  • L Landin
  • Mats Kleverman
  • Werner Seifert
  • Lars Samuelson
  • Y Fu
  • M Willander

Summary, in English

In this article, we present the results from photoconductivity measurements in the infrared spectral region (3-10 mum) on ensembles of self-assembled InAs quantum dots embedded in a matrix of InP. In the spectral distribution of the photocurrent, peaks are observed which we interpret in terms of transitions from the dots' ground- and first-excited states to the conduction band of the dots/matrix. Furthermore, we have calculated the expected photoresponse and found it to be in qualitative agreement with our experimental data.

Publishing year

2004

Language

English

Pages

1829-1831

Publication/Series

Applied Physics Reviews

Volume

95

Issue

4

Document type

Journal article

Publisher

American Institute of Physics (AIP)

Topic

  • Condensed Matter Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1931-9401