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

  • H Pettersson
  • L Landin
  • Mats Kleverman
  • Werner Seifert
  • Lars Samuelson
  • Y Fu
  • M Willander
Publiceringsår: 2004
Språk: Engelska
Sidor: 1829-1831
Publikation/Tidskrift/Serie: Applied Physics Reviews
Volym: 95
Nummer: 4
Dokumenttyp: Artikel i tidskrift
Förlag: American Institute of Physics


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.


  • Condensed Matter Physics


  • ISSN: 0021-8979

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