Enhanced photovoltaic effects in ferroelectric solid solution thin films with nanodomains

Hiroki Matsuo, Yuji Noguchi, Masaru Miyayama, Takanori Kiguchi, Toyohiko J. Konno

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Domain structures in polar materials provide an additional degree of freedom to tune ferroelectric photovoltaic (PV) effects. One of the approaches to control domain structures is to form a solid solution with analogs in different symmetries. In this study, we investigate the influence of domain structures on the PV properties of ferroelectric thin films in the xBaTiO3-(1-x)BiFeO3 (BT-BFO) solid-solution system (x = 0.1 and 0.2). We found that a substitution of BT for BFO substantially decreases the domain size down to several tens of nanometers, leading to an enhanced PV response owing to a marked contribution of the domain-wall PV effect.

Original languageEnglish
Article number132901
JournalApplied Physics Letters
Volume116
Issue number13
DOIs
Publication statusPublished - 2020 Mar 30

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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