Journal
APPLIED PHYSICS LETTERS
Volume 107, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4930814
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- CEA
- Triangle de la Physique and Ile-de-France (C'Nano and ISC-PIF) under the IMAFMP grants
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We demonstrate on prototypical samples containing a ferroelectric layer (BaTiO3/Nb:SrTiO3) that the efficiency of the system, used as photoanode, substantially depends on the polarization state of the ferroelectric layer. We show a significant increase of the photocurrent by a factor larger than 2 when the BaTiO3 film is downward polarized. We explain this finding by the presence of an internal electric field which favors the separation of photo-generated charges. (C) 2015 AIP Publishing LLC.
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