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Photocurrent induced by intersubband transition in a type II and broken-gap quantum well system

Journal Article


Abstract


  • We demonstrate theoretically that when an InAs/GaSb based type II and broken-gap quantum well is subjected

    to a light field, conductance can be observed along the growth direction due to charge transfer between

    electron and hole layers. A sharp peak can be observed in conductance within sub-THz bandwidth. The peak

    shifts to the lower frequency (red-shift) with increasing temperature. Our results indicate that InAs/GaSb

    based quantum well systems are of potential to be applied as sub-THz photovoltaic devices.

UOW Authors


  •   Wei, X F. (external author)
  •   Xu, Wen (external author)
  •   Zeng, Zhi (external author)
  •   Zhang, C

Publication Date


  • 2007

Citation


  • Wei, X. F., Xu, W., Zeng, Z. & Zhang, C. (2007). Photocurrent induced by intersubband transition in a type II and broken-gap quantum well system. Physica Status Solidi. Rapid Research Letters, 4 (2), 544-546.

Scopus Eid


  • 2-s2.0-50049131489

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3329

Number Of Pages


  • 2

Start Page


  • 544

End Page


  • 546

Volume


  • 4

Issue


  • 2

Abstract


  • We demonstrate theoretically that when an InAs/GaSb based type II and broken-gap quantum well is subjected

    to a light field, conductance can be observed along the growth direction due to charge transfer between

    electron and hole layers. A sharp peak can be observed in conductance within sub-THz bandwidth. The peak

    shifts to the lower frequency (red-shift) with increasing temperature. Our results indicate that InAs/GaSb

    based quantum well systems are of potential to be applied as sub-THz photovoltaic devices.

UOW Authors


  •   Wei, X F. (external author)
  •   Xu, Wen (external author)
  •   Zeng, Zhi (external author)
  •   Zhang, C

Publication Date


  • 2007

Citation


  • Wei, X. F., Xu, W., Zeng, Z. & Zhang, C. (2007). Photocurrent induced by intersubband transition in a type II and broken-gap quantum well system. Physica Status Solidi. Rapid Research Letters, 4 (2), 544-546.

Scopus Eid


  • 2-s2.0-50049131489

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3329

Number Of Pages


  • 2

Start Page


  • 544

End Page


  • 546

Volume


  • 4

Issue


  • 2