Enhanced photovoltaic effect in Bi2FeMo0.7Ni0.3O6 ferroelectric thin films by tuning the thickness

An enhanced photovoltaic performance is achieved by self-polarization of Bi2FeMo0.7Ni0.3O3 ferroelectric thin films by tuning the driving force based on the change of thickness.

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Quantitative investigation of polarization-dependent photocurrent in ferroelectric thin films

Journal of Physics Condensed Matter ◽

10.1088/1361-648x/ac3f67 ◽

2021 ◽

Author(s):

Komalika Rani ◽

Sylvia Matzen ◽

Stéphane Gable ◽

Thomas Maroutian ◽

Guillaume Agnus ◽

...

Keyword(s):

Thin Films ◽

Photovoltaic Effect ◽

Quantitative Relationship ◽

Open Circuit ◽

Ferroelectric Thin Films ◽

Ferroelectric Polarization ◽

Ferroelectric Layer ◽

Ferroelectric Memories ◽

Careful Investigation

Abstract Ferroelectric thin films are investigated for their potential in photovoltaic (PV) applications, owing to their high open-circuit voltage and switchable photovoltaic effect. The direction of the ferroelectric polarization can control the sign of the photocurrent through the ferroelectric layer, theoretically allowing for 100 percent switchability of the photocurrent with the polarization, which is particularly interesting for photo-ferroelectric memories. However, the quantitative relationship between photocurrent and polarization remains little studied. In this work, a careful investigation of the polarization-dependent photocurrent of epitaxial Pb(Zr,Ti)O3 thin films has been carried out, and has provided a quantitative determination of the unswitchable part of ferroelectric polarization. These results represent a systematic approach to study and optimize the switchability of photocurrent, and more broadly to get important insights on the ferroelectric behavior in all types of ferroelectric layers in which pinned polarization is difficult to investigate.

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Photovoltaic effect in rhombohedral and tetragonal phase BiFeO3 ferroelectric thin films

Integrated Ferroelectrics ◽

10.1080/10584587.2018.1521663 ◽

2018 ◽

Vol 192 (1) ◽

pp. 146-153

Author(s):

Rongli Gao ◽

Chunlin Fu ◽

Wei Cai ◽

Gang Chen ◽

Xiaoling Deng ◽

...

Keyword(s):

Thin Films ◽

Tetragonal Phase ◽

Photovoltaic Effect ◽

Ferroelectric Thin Films

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Depolarization field as a driving force of fatigue in PZT ferroelectric thin films

Ferroelectrics ◽

10.1080/00150199708228353 ◽

1997 ◽

Vol 201 (1) ◽

pp. 55-64 ◽

Cited By ~ 5

Author(s):

V. V. Lemanov ◽

V. K. Yarmarkin

Keyword(s):

Thin Films ◽

Driving Force ◽

Ferroelectric Thin Films ◽

Pzt Ferroelectric Thin Films

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Polarization as a driving force in accelerated retention measurements on ferroelectric thin films

ISAF 1998. Proceedings of the Eleventh IEEE International Symposium on Applications of Ferroelectrics (Cat. No.98CH36245) ◽

10.1109/isaf.1998.786625 ◽

2002 ◽

Cited By ~ 2

Author(s):

S.D. Traynor

Keyword(s):

Thin Films ◽

Driving Force ◽

Ferroelectric Thin Films

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A controllable photoresponse and photovoltaic performance in Bi4Ti3O12 ferroelectric thin films

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2016.10.160 ◽

2017 ◽

Vol 694 ◽

pp. 998-1003 ◽

Cited By ~ 12

Author(s):

Hongcai He ◽

Zhaoling He ◽

Zhuolin Jiang ◽

Jing Wang ◽

Tao Liu ◽

...

Keyword(s):

Thin Films ◽

Photovoltaic Performance ◽

Ferroelectric Thin Films

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Photovoltaic Effect in Thin Ferroelectric Films

MRS Proceedings ◽

10.1557/proc-243-27 ◽

1991 ◽

Vol 243 ◽

Author(s):

Philip S. Brody ◽

B. J. Rod ◽

L. P. Cook ◽

P. K. Schenck

Keyword(s):

Thin Films ◽

Photovoltaic Effect ◽

Ferroelectric Thin Films ◽

Polarization Field ◽

Polarization Reversal ◽

Ferroelectric Films ◽

Initial Current ◽

Elapsed Time ◽

Steady Current

AbstractPolarization-dependent photovoltaic currents are observed in continuously illuminated ferroelectric thin films under conditions of polarization reversal. Following reversal, an initial current rapidly decays to an essentially steady current, which then decays slowly with the current decreasing in proportion to the logarithm of elapsed time. These polarization-dependent currents are attributed to the action of internal fields on photocarriers where the fields result from the incomplete screening of the polarization field.

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