Imaging the photovoltaic response of PbS-sensitized porous titania

L. Turyanska, O. Makarovsky, U. Elfurawi, A. Patane, M. W. Fay, J. W. Bowers, H. M. Upadhyaya

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Abstract

We report the photovoltaic response of solid-state devices based on porous TiO2 photosensitized with PbS nanocrystals. A photovoltaic response in the visible and near infrared wavelength range is obtained by exploiting the Schottky junction that forms at the interface between the PbS/TiO2 film and a metallic contact. Spatial images of the photoluminescence and of the short circuit photocurrent signal reveal a non-homogeneous response, which we explain in terms of the electron transfer dynamics at the PbS/TiO2 interface and the morphological properties of TiO2. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Original languageEnglish
Pages (from-to)2450-2453
Number of pages4
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume208
Issue number10
DOIs
Publication statusPublished - Oct 2011

Keywords

  • colloidal quantum dots
  • lead sulphide
  • Schottky junctions
  • titania

Cite this

Turyanska, L., Makarovsky, O., Elfurawi, U., Patane, A., Fay, M. W., Bowers, J. W., & Upadhyaya, H. M. (2011). Imaging the photovoltaic response of PbS-sensitized porous titania. Physica Status Solidi (A) Applications and Materials Science, 208(10), 2450-2453. https://doi.org/10.1002/pssa.201127066