Marcel Habrik
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Interests
Marcel Habrik has a total of 3 co-authors. Here are the top co-authors by number of shared publications:
- Alexander Colsmann
Material Research Center for Energy Systems Karlsruhe Institute of Technology Karlsruhe Germany
1 shared publication - Holger Röhm
Material Research Center for Energy Systems Karlsruhe Institute of Technology Karlsruhe Germany
1 shared publication Susanne Wagner
Material Research Center for Energy Systems Karlsruhe Institute of Technology Karlsruhe Germany
1 shared publication
Latest Publications
- Open Access
- 4 September 2026
- Published by Wiley in Advanced Physics Research
- Vol. 5 (9) , e70166
Elucidating the Effect of Ferroelectricity in Bismuth Ferrite Solar Cells
To investigate the photoresponse of metal‐ferroelectric‐metal (MFM) devices, we sandwich polycrystalline bismuth ferrite between two electrodes of similar work function. We use calcium‐substitution on the A‐site to tailor the properties of bismuth ferrite Bi 1‐x Ca x FeO 3‐δ from ferroelectric ( x < 0.2) to nonferroelectric ( x > 0.2). Devices with nonferroelectric Bi 1‐x Ca x FeO 3‐δ show symmetric current density‐voltage ( J–V ) curves and no photoresponse, resembling their symmetric electronic properties that originate from two opposing Schottky junctions at the symmetric electrodes. In contrast, the J–V curves of ferroelectric Bi 1‐x Ca x FeO 3‐δ are governed by the polarization direction, introducing directionality through modification of the Schottky barriers. Under illumination, the polarization induced modulation of the Schottky barriers promotes directionality of the photogenerated charge carriers and leverages enhanced photocurrents.
- 4 September 2026
- Published by Wiley in Advanced Physics Research
- Vol. 5 (9) , e70166
Open AccessElucidating the Effect of Ferroelectricity in Bismuth Ferrite Solar Cells
To investigate the photoresponse of metal‐ferroelectric‐metal (MFM) devices, we sandwich polycrystalline bismuth ferrite between two electrodes of similar work function. We use calcium‐substitution on the A‐site to tailor the properties of bismuth ferrite Bi 1‐x Ca x FeO 3‐δ from ferroelectric ( x < 0.2) to nonferroelectric ( x > 0.2). Devices with nonferroelectric Bi 1‐x Ca x FeO 3‐δ show symmetric current density‐voltage ( J–V ) curves and no photoresponse, resembling their symmetric electronic properties that originate from two opposing Schottky junctions at the symmetric electrodes. In contrast, the J–V curves of ferroelectric Bi 1‐x Ca x FeO 3‐δ are governed by the polarization direction, introducing directionality through modification of the Schottky barriers. Under illumination, the polarization induced modulation of the Schottky barriers promotes directionality of the photogenerated charge carriers and leverages enhanced photocurrents.