TY - GEN
T1 - Tuning of the optical band-gap of rare earth doped BiFeO3 submicron particles for solar cell applications
AU - Nayek, Chiranjib
AU - Al-Akhras, M. Ali
AU - Obaidat, Ihab M.
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/4/12
Y1 - 2018/4/12
N2 - 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.
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.
KW - Bismuth ferrite
KW - optical band-gap
KW - solar cell
UR - http://www.scopus.com/inward/record.url?scp=85050497499&partnerID=8YFLogxK
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U2 - 10.1109/ICREGA.2018.8337582
DO - 10.1109/ICREGA.2018.8337582
M3 - Conference contribution
AN - SCOPUS:85050497499
T3 - 5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018
SP - 147
EP - 149
BT - 5th International Conference on Renewable Energy
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018
Y2 - 26 February 2018 through 28 February 2018
ER -