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Journal article
Ultrahigh Bulk Photovoltaic Effect Responsivity in Thin Films: Unexpected Behavior in a Classic Ferroelectric Material
Solar RRL
21 Sep 2023
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The bulk photovoltaic effect (BPE) has drawn considerable attention due to its ability to generate photovoltages above the band gap () and reports of highly enhanced photovoltaic current when using nanoscale absorbers or nanoscale electrodes, which however do not lend themselves to practical, scalable implementation. Here, we show that a strikingly high BPE photoresponse can be achieved in an ordinary thin‐film configuration merely by tuning fundamental ferroelectric properties. Non‐monotonic dependence of the responsivity ( R S C ) on the ferroelectric polarization ( P ) is observed and at the optimal value of the film polarization, a more than three orders of magnitude increase in the R S C from the bulk BaTiO 3 value is obtained, reaching R S C close to 10 −2 A/W, the highest value reported to date for the archetypical ferroelectric BaTiO 3 films. Our results challenge the applicability of standard first‐principles‐based descriptions of BPE to thin films and the inherent weakness of BPE in ferroelectric thin films. This article is protected by copyright. All rights reserved.
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Details
- Title
- Ultrahigh Bulk Photovoltaic Effect Responsivity in Thin Films: Unexpected Behavior in a Classic Ferroelectric Material
- Creators
- Or Shafir - Bar-Ilan UniversityAndrew L. Bennett-Jackson - Drexel UniversityA. R. Will-Cole - Drexel University Philadelphia PA 19104‐2875 USAAtanu Samanta - Bar-Ilan UniversityDongfang Chen - Drexel UniversityAdrian Podpirka - Drexel UniversityAaron Burger - Drexel UniversityLiyan Wu - Drexel UniversityEduardo Lupi Sosa - University of California, BerkeleyLane W. Martin - University of California, BerkeleyJonathan E. Spanier - Drexel UniversityIlya Grinberg - Bar-Ilan University
- Publication Details
- Solar RRL
- Publisher
- Wiley
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:001085690600001
- Scopus ID
- 2-s2.0-85174385124
- Other Identifier
- 991021229415604721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Energy & Fuels
- Materials Science, Multidisciplinary