Domain and Switching Control of the Bulk Photovoltaic Effect in Epitaxial BiFeO₃ Thin Films.

ABSTRACT: Absence of inversion symmetry is the underlying origin of ferroelectricity, piezoelectricity, and the bulk photovoltaic (BPV) effect, as a result of which they are inextricably linked. However, till now, only the piezoelectric effects (inverse) have been commonly utilized for probing ferroelectric characteristics such as domain arrangements and resultant polarization orientation. The bulk photovoltaic effect, despite sharing same relation with the symmetry as piezoelectricity, has been mostly perceived as an outcome of ferroelectricity and not as a possible analytical method. In this work, we investigate the development of BPV characteristics, i.e. amplitude and angular dependency of short-circuit current, as the ferroelastic domain arrangement is varied by applying electric fields in plan

SUBMITTER: Knoche DS 

PROVIDER: S-EPMC6765050 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature