[21a-P02-1~10] 6.1 Ferroelectric thin films

English Presentation

[21a-P02-3] Investigation of Photovoltaic effect of (100) BiFeO₃ Thin Films Epitaxially Grown on Si Substrate

〇AMELIE LAURE PETITJEAN^1,2, SENGSAVANG APHAYVONG¹, KOHEI TAKAKI¹, NORIFUMI FUJIMURA¹, TAKESHI YOSHIMURA¹ (1.Osaka Metro. Univ., 2.ENSMAC FRANCE)

Keywords:

Photovoltaic effect,Dielectric properties

The production of hydrogen gas from clean energy is a promising solution to climate change. The photovoltaic effect of ferroelectrics is expected to be one of the new methods of H₂ generation because it can generate an electromotive force larger than the bandgap. BiFeO₃ thin films have attracted attention because they exhibit large photovoltaic effect but are known to be challenging to obtain insulating properties. In this study, we investigate the relationship between the dielectric properties and the photovoltaic effect of epitaxially grown (100) BiFeO₃ thin films on Si substrates using the combinatorial sputtering method.