Giant bulk photovoltaic effect in thin ferroelectricfilms
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- 28 October 2014
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 90 (16), 161409
- https://doi.org/10.1103/physrevb.90.161409
Abstract
The voltage generated in a noncentrosymmetric crystal due to the bulk photovoltaic effect (BPE) can greatly exceed the energy gap, however, the light energy conversion efficiency is extremely low. Here we show that the BPE is remarkably enhanced in the case of thin films. The measurements of the BPE in heteroepitaxial single domain ferroelectric thin films reveal the enhancement of both photoinduced electric field and conversion efficiencies of the BPE by more than 4 orders of magnitude. Besides the fundamental aspect, our results indicate the potential for the use of the BPE in photovoltaic applications.
Keywords
Funding Information
- Ministry of Education and Science of the Russian Federation (RFMEFI59414X0009)
This publication has 26 references indexed in Scilit:
- Structural, ferroelectric, electronic and transport properties of BaTiO3/Pt heterostructures grown on MgO(001)Microelectronic Engineering, 2013
- Pulsed laser deposition of ultrathin BaTiO3/Fe bi-layers: Structural characterization and piezoelectric responseThin Solid Films, 2012
- Tip-enhanced photovoltaic effects in bismuth ferriteNature Communications, 2011
- Bulk Photovoltaic Effect at Visible Wavelength in Epitaxial Ferroelectric BiFeO3 Thin FilmsAdvanced Materials, 2010
- Above-bandgap voltages from ferroelectric photovoltaic devicesNature Nanotechnology, 2010
- Photovoltaic mechanisms in ferroelectric thin films with the effects of the electrodes and interfacesApplied Physics Letters, 2009
- Schottky barrier effects in the photocurrent of sol–gel derived lead zirconate titanate thin film capacitorsApplied Physics Letters, 2000
- Anomalous photovoltaic effect in ferroelectricsSoviet Physics Uspekhi, 1978
- Photoconductivity in certain ferroelectricsFerroelectrics, 1974
- Surface Space-Charge Layers in Barium TitanatePhysical Review B, 1956