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Ferroelectric polarization tuning the photovoltaic and diode-like effect of the Ni, Sm co-doped BiFeO3 film capacitors

Journal Article


Abstract


  • Although BiFeO3-based photovoltaic devices have currently attracted much attention due to their unique physical properties, their practical applications have been limited by the complex and obscure intrinsic physical mechanisms. This paper reported the synthesis of the Ni, Sm co-doped BiFeO3 film capacitors by a spin-coating technology. The results and analysis showed that co-doped BiFeO3 films exhibited low leakage current and well saturated ferroelectric hysteresis loops. Especially, the photovoltaic effect and diode-like effect of ferroelectric film capacitors could be efficiently modulated by the external polarization. The complex intrinsic physical mechanism of photovoltaic effect and diode-like effect under polarization modulation was studied and explained clearly by the energy-band diagram and the theory of ferroelectric polarization. Moreover, the effect of inherent and external factors on photovoltaic output of BiFeO3 films was jointly analyzed by the ferroelectric polarization and photovoltaic mechanism. This theoretical exploration may facilitate to improve the understanding of the photovoltaic effect in ferroelectrics, which will be likely to have the opportunity to advance the design of switchable devices that combine ferroelectric and photovoltaics.

UOW Authors


  •   Yang, Tiantian (external author)
  •   Wei, Jie (external author)
  •   Lv, Zhibin (external author)
  •   Xu, Zhuo (external author)
  •   Cheng, Zhenxiang

Publication Date


  • 2019

Citation


  • Yang, T., Wei, J., Lv, Z., Xu, Z. & Cheng, Z. (2019). Ferroelectric polarization tuning the photovoltaic and diode-like effect of the Ni, Sm co-doped BiFeO3 film capacitors. Journal of Materials Science: Materials in Electronics, 30 (13), 12163-12169.

Scopus Eid


  • 2-s2.0-85068763350

Number Of Pages


  • 6

Start Page


  • 12163

End Page


  • 12169

Volume


  • 30

Issue


  • 13

Place Of Publication


  • United States

Abstract


  • Although BiFeO3-based photovoltaic devices have currently attracted much attention due to their unique physical properties, their practical applications have been limited by the complex and obscure intrinsic physical mechanisms. This paper reported the synthesis of the Ni, Sm co-doped BiFeO3 film capacitors by a spin-coating technology. The results and analysis showed that co-doped BiFeO3 films exhibited low leakage current and well saturated ferroelectric hysteresis loops. Especially, the photovoltaic effect and diode-like effect of ferroelectric film capacitors could be efficiently modulated by the external polarization. The complex intrinsic physical mechanism of photovoltaic effect and diode-like effect under polarization modulation was studied and explained clearly by the energy-band diagram and the theory of ferroelectric polarization. Moreover, the effect of inherent and external factors on photovoltaic output of BiFeO3 films was jointly analyzed by the ferroelectric polarization and photovoltaic mechanism. This theoretical exploration may facilitate to improve the understanding of the photovoltaic effect in ferroelectrics, which will be likely to have the opportunity to advance the design of switchable devices that combine ferroelectric and photovoltaics.

UOW Authors


  •   Yang, Tiantian (external author)
  •   Wei, Jie (external author)
  •   Lv, Zhibin (external author)
  •   Xu, Zhuo (external author)
  •   Cheng, Zhenxiang

Publication Date


  • 2019

Citation


  • Yang, T., Wei, J., Lv, Z., Xu, Z. & Cheng, Z. (2019). Ferroelectric polarization tuning the photovoltaic and diode-like effect of the Ni, Sm co-doped BiFeO3 film capacitors. Journal of Materials Science: Materials in Electronics, 30 (13), 12163-12169.

Scopus Eid


  • 2-s2.0-85068763350

Number Of Pages


  • 6

Start Page


  • 12163

End Page


  • 12169

Volume


  • 30

Issue


  • 13

Place Of Publication


  • United States