Efficient light harvesting in hybrid CdTe nanocrystal/bulk GaAs p-i-n photovoltaic devices

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

22 Scopus Citations
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Author(s)

  • Soontorn Chanyawadee
  • Richard T. Harley
  • David Taylor
  • Mohamed Henini
  • Andrei S. Susha
  • Pavlos G. Lagoudakis

Detail(s)

Original languageEnglish
Article number233502
Journal / PublicationApplied Physics Letters
Volume94
Issue number23
Publication statusPublished - 2009
Externally publishedYes

Abstract

A hybrid colloidal CdTe nanocrystal/bulk GaAs p-i-n heterostructure is demonstrated to have potential for highly efficient light harvesting photovoltaic devices. An array of rectangular channels is fabricated on the surface of the GaAs heterostructure penetrating through its active layer and subsequently filled with water soluble CdTe nanocrystals emitting in the near infrared. Photogenerated carriers in the highly absorbing colloidal nanocrystals are efficiently transferred by means of nonradiative energy transfer to the patterned heterostructure possessing high carrier mobility and converted to electrical current. A threefold enhancement of both photocurrent and monochromatic power conversion efficiency has been achieved. © 2009 American Institute of Physics.

Citation Format(s)

Efficient light harvesting in hybrid CdTe nanocrystal/bulk GaAs p-i-n photovoltaic devices. / Chanyawadee, Soontorn; Harley, Richard T.; Taylor, David et al.
In: Applied Physics Letters, Vol. 94, No. 23, 233502, 2009.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review