Tuning of the optical band-gap of rare earth doped BiFeO3 submicron particles for solar cell applications

Chiranjib Nayek; M. Ali Al-Akhras; Ihab M. Obaidat

doi:10.1109/ICREGA.2018.8337582

Tuning of the optical band-gap of rare earth doped BiFeO₃ submicron particles for solar cell applications

Chiranjib Nayek, M. Ali Al-Akhras, Ihab M. Obaidat

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

We have synthesized BiFeO₃, Bi_0.95Y_0.05FeO₃, Bi_0.95Ho_0.05FeO₃, and Bi_0.95Er_0.05FeO₃ compounds by the usual solgel route. The structural properties of the materials were characterized by X-ray diffraction (XRD). The optical properties were measured by UV-visible optical spectroscopy. The X-ray diffraction pattern and Reitveld refinement confirm the predominant BFO and rare earth doped BiFeO₃ phases having rhombohedra structure with R3c space group. By doping BiFeO₃ with rare earth ions (E, H, and Y), the optical band gap was tuned from 2.07 eV to 1.98 eV and thus falling under visible light range which could be promising for solar cell applications. We are proposing a photovoltaic device using rare earth doped BFO material with tuneable energy gap to enhance the probability of light absorption. The mechanism of operation of this kind of solar cell will be discussed.

Original language	English
Title of host publication	5th International Conference on Renewable Energy
Subtitle of host publication	Generation and Application, ICREGA 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	147-149
Number of pages	3
Volume	2018-January
ISBN (Electronic)	9781538622513
DOIs	https://doi.org/10.1109/ICREGA.2018.8337582
Publication status	Published - Apr 12 2018
Event	5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018 - Al Ain, United Arab Emirates Duration: Feb 26 2018 → Feb 28 2018

Other

Other	5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018
Country/Territory	United Arab Emirates
City	Al Ain
Period	2/26/18 → 2/28/18

Keywords

Bismuth ferrite
optical band-gap
solar cell

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/ICREGA.2018.8337582

Cite this

Nayek, C., Al-Akhras, M. A., & Obaidat, I. M. (2018). Tuning of the optical band-gap of rare earth doped BiFeO₃ submicron particles for solar cell applications. In 5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018 (Vol. 2018-January, pp. 147-149). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICREGA.2018.8337582

Tuning of the optical band-gap of rare earth doped BiFeO₃ submicron particles for solar cell applications. / Nayek, Chiranjib; Al-Akhras, M. Ali; Obaidat, Ihab M.
5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018. Vol. 2018-January Institute of Electrical and Electronics Engineers Inc., 2018. p. 147-149.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nayek, C, Al-Akhras, MA & Obaidat, IM 2018, Tuning of the optical band-gap of rare earth doped BiFeO₃ submicron particles for solar cell applications. in 5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018. vol. 2018-January, Institute of Electrical and Electronics Engineers Inc., pp. 147-149, 5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018, Al Ain, United Arab Emirates, 2/26/18. https://doi.org/10.1109/ICREGA.2018.8337582

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AB - We have synthesized BiFeO3, Bi0.95Y0.05FeO3, Bi0.95Ho0.05FeO3, and Bi0.95Er0.05FeO3 compounds by the usual solgel route. The structural properties of the materials were characterized by X-ray diffraction (XRD). The optical properties were measured by UV-visible optical spectroscopy. The X-ray diffraction pattern and Reitveld refinement confirm the predominant BFO and rare earth doped BiFeO3 phases having rhombohedra structure with R3c space group. By doping BiFeO3 with rare earth ions (E, H, and Y), the optical band gap was tuned from 2.07 eV to 1.98 eV and thus falling under visible light range which could be promising for solar cell applications. We are proposing a photovoltaic device using rare earth doped BFO material with tuneable energy gap to enhance the probability of light absorption. The mechanism of operation of this kind of solar cell will be discussed.

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