Journal
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
Volume 13, Issue 5, Pages 896-903Publisher
WILEY
DOI: 10.1111/ijac.12562
Keywords
photovoltaics; ferroelectrics; doping; BNBT
Categories
Funding
- Australian Research Council Discovery Project [DP110104629]
- Australian Commonwealth Government
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In this study, the photovoltaic (PV) effect in Fe-doped (Bi0.5Na0.5)TiO3-0.06BaTiO(3) (BNBT) ceramics was investigated. It was found that the bandgap of BNBT is successfully narrowed through Fe doping and a substantially enhanced photovoltaic response was obtained in Fe-doped BNBT. Density functional theory calculations show that the enhanced PV response can be attributed to the dopant, which introduces localized intermediate states within the band gap as well as a strong asymmetry of the projections of the responsible Fe-Ti bond length on the c-axis.
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