Photovoltaic response of hydrothermally derived BFO ceramics

Author:

Sharma Savita12,Puri Nitin K.2,Gupta Vinay1

Affiliation:

1. Department of Physics and Astrophysics, University of Delhi, Delhi, India

2. Department of Applied Physics, Delhi Technological University, Delhi, India

Abstract

In this study, bismuth ferrite (BiFeO3; BFO) powder was synthesised using a low-temperature hydrothermal method. The powder was characterised using X-ray diffraction (XRD) and an ultraviolet–visible spectrophotometer. The XRD analysis showed that the post-annealed BFO at 570°C possesses a perovskite structure and exhibits a rhombohedral structure without any impurity phase. A BFO ceramic capacitor (indium tin oxide (ITO)/BFO/gold (Au)) was fabricated using gold and ITO as electrodes. The ferroelectric property of the prepared BFO ceramic was confirmed by polarization–electric field (P–E) hysteresis loop measurements. Post-annealing improves the ferroelectric properties of BFO ceramic, giving an enhanced ferroelectric–photovoltaic response towards violet laser light of wavelength 405 nm at an intensity of 160 mW/cm2. The values for short-circuit current density J sc and open-circuit voltage V oc obtained for the BFO samples were found to be 0·1 μA and 0·29 V, respectively. The obtained results are encouraging and makes the prepared BFO sample suitable for energy harvesting applications.

Publisher

Thomas Telford Ltd.

Subject

Condensed Matter Physics,General Materials Science

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Structural, optical, dielectric and magneto-dielectric properties of Ca2+-modified BiFeO3 multiferroics;Journal of Materials Science: Materials in Electronics;2023-10

2. Effect of laser fluence on multiferroic BiFeO3 ferroelectric photovoltaic cells;Journal of Physics and Chemistry of Solids;2020-11

3. Editorial: themed issue;Emerging Materials Research;2017-11

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