Imaging the photovoltaic response of PbS-sensitized porous titania

Turyanska, Lyudmila, Makarovsky, O., Elfurawi, U. , Patane, A., Fay, M. W., Bowers, J. W. and Upadhyaya, H. M. (2011) Imaging the photovoltaic response of PbS-sensitized porous titania. Physica Status Solidi (A) Applications and Materials Science, 208 (10). pp. 2450-2453. ISSN 1862-6300

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We report the photovoltaic response of solid-state devices based on porous TiO 2 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/TiO 2 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/TiO 2 interface and the morphological properties of TiO 2. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords:Colloidal quantum dots, Electron transfer dynamics, lead sulphide, Metallic contacts, Morphological properties, Non-homogeneous, PbS nanocrystal, Photovoltaic response, Porous TiO, Porous titania, Schottky junctions, Short-circuit photocurrent, Spatial images, TiO, Titania, Visible and near infrared, Electron transitions, Quantum theory, Semiconductor quantum wells, Solid state devices, Titanium dioxide, Photovoltaic effects
Subjects:F Physical Sciences > F310 Applied Physics
Divisions:College of Science > School of Chemistry
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ID Code:22522
Deposited On:06 Apr 2016 15:29

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