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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication5th International Conference on Renewable Energy
Subtitle of host publicationGeneration and Application, ICREGA 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages147-149
Number of pages3
ISBN (Electronic)9781538622513
DOIs
Publication statusPublished - Apr 12 2018
Event5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018 - Al Ain, United Arab Emirates
Duration: Feb 26 2018Feb 28 2018

Publication series

Name5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018
Volume2018-January

Other

Other5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018
Country/TerritoryUnited Arab Emirates
CityAl Ain
Period2/26/182/28/18

Keywords

  • Bismuth ferrite
  • optical band-gap
  • solar cell

ASJC Scopus subject areas

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

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