Nanoscale excitonic photovoltaic mechanism in ferroelectric BiFeO3 thin films [Nanoscale excitonic mechanism underlying the bulk photovoltaic effect in ferroelectric BiFeO3 thin films]

Li, Yuelin; Adamo, Carolina; Rowland, Clare E.; Schaller, Richard D.; Schlom, Darrell G.; Walko, Donald A.

doi:10.1063/1.5030628

Title: Nanoscale excitonic photovoltaic mechanism in ferroelectric BiFeO₃ thin films [Nanoscale excitonic mechanism underlying the bulk photovoltaic effect in ferroelectric BiFeO₃ thin films]

Abstract

We report an electrode-free photovoltaic experiment in epitaxial BiFeO₃ thin films where the picosecond optical absorption arising from carrier dynamics and piezoelectric lattice distortion due to the photovoltaic field are correlated at nanoscale. The data strongly suggest that the photovoltaic effect in phase-pure BiFeO₃ originates from diffusion of charge-neutral excitons and their subsequent dissociation localized at sample interfaces. This is in stark contrast to the belief that carrier separation is uniform within the sample due to the lack of center of symmetry in BiFeO₃. As a result, this finding is important for formulating strategies in designing practical photovoltaic ferroelectric devices.

Authors:

Li, Yuelin ^[1]; Adamo, Carolina ^[2]; Rowland, Clare E. ^[3]; Schaller, Richard D. ^[1]; Schlom, Darrell G. ^[4]; Walko, Donald A. ^[1]

Argonne National Lab. (ANL), Argonne, IL (United States)
Stanford Univ., Stanford, CA (United States)
Northwestern Univ., Evanston, IL (United States)
Kavli Institute at Cornell for Nanoscale Science, Ithaca, NY (United States); Cornell Univ., Ithaca, NY (United States)

Publication Date:: Fri Jun 08 00:00:00 EDT 2018

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: U.S. Army Research Laboratory, U.S. Army Research Office (ARO); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR). Scientific Discovery through Advanced Computing (SciDAC)

OSTI Identifier:: 1473616

Alternate Identifier(s):: OSTI ID: 1441076

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: APL Materials

Additional Journal Information:: Journal Volume: 6; Journal Issue: 8; Journal ID: ISSN 2166-532X

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; exciton; ferroelectric; photovoltaic

Citation Formats


                    Li, Yuelin, Adamo, Carolina, Rowland, Clare E., Schaller, Richard D., Schlom, Darrell G., and Walko, Donald A. Nanoscale excitonic photovoltaic mechanism in ferroelectric BiFeO3 thin films [Nanoscale excitonic mechanism underlying the bulk photovoltaic effect in ferroelectric BiFeO3 thin films].  United States: N. p., 2018. 
Web.  doi:10.1063/1.5030628.

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                    Li, Yuelin, Adamo, Carolina, Rowland, Clare E., Schaller, Richard D., Schlom, Darrell G., & Walko, Donald A. Nanoscale excitonic photovoltaic mechanism in ferroelectric BiFeO3 thin films [Nanoscale excitonic mechanism underlying the bulk photovoltaic effect in ferroelectric BiFeO3 thin films].  United States.  https://doi.org/10.1063/1.5030628

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                    Li, Yuelin, Adamo, Carolina, Rowland, Clare E., Schaller, Richard D., Schlom, Darrell G., and Walko, Donald A. Fri .  
"Nanoscale excitonic photovoltaic mechanism in ferroelectric BiFeO3 thin films [Nanoscale excitonic mechanism underlying the bulk photovoltaic effect in ferroelectric BiFeO3 thin films]".  United States.  https://doi.org/10.1063/1.5030628.  https://www.osti.gov/servlets/purl/1473616.

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@article{osti_1473616,

  title        = {Nanoscale excitonic photovoltaic mechanism in ferroelectric BiFeO3 thin films [Nanoscale excitonic mechanism underlying the bulk photovoltaic effect in ferroelectric BiFeO3 thin films]},

  author       = {Li, Yuelin and Adamo, Carolina and Rowland, Clare E. and Schaller, Richard D. and Schlom, Darrell G. and Walko, Donald A.},

  abstractNote = {We report an electrode-free photovoltaic experiment in epitaxial BiFeO3 thin films where the picosecond optical absorption arising from carrier dynamics and piezoelectric lattice distortion due to the photovoltaic field are correlated at nanoscale. The data strongly suggest that the photovoltaic effect in phase-pure BiFeO3 originates from diffusion of charge-neutral excitons and their subsequent dissociation localized at sample interfaces. This is in stark contrast to the belief that carrier separation is uniform within the sample due to the lack of center of symmetry in BiFeO3. As a result, this finding is important for formulating strategies in designing practical photovoltaic ferroelectric devices.},

  doi          = {10.1063/1.5030628},

  journal      = {APL Materials},

  number       = 8,

  volume       = 6,

  place        = {United States},

  year         = {Fri Jun 08 00:00:00 EDT 2018},

  month        = {Fri Jun 08 00:00:00 EDT 2018}

}

Copy to clipboard

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Works referencing / citing this record:

Progress in BiFeO ₃ -based heterostructures: materials, properties and applications
journal, January 2020

Yin, Li; Mi, Wenbo
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Giant photoinduced lattice distortion in oxygen vacancy ordered ${SrCoO}_{2.5}$ thin films
journal, October 2019

Zhang, Bingbing; He, Xu; Zhao, Jiali
Physical Review B, Vol. 100, Issue 14
DOI: 10.1103/physrevb.100.144201

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Title: Nanoscale excitonic photovoltaic mechanism in ferroelectric BiFeO3 thin films [Nanoscale excitonic mechanism underlying the bulk photovoltaic effect in ferroelectric BiFeO3 thin films]

Abstract

Citation Formats

Evidences for the depletion region induced by the polarization of ferroelectric semiconductors journal, December 2009

Optical band gap of BiFeO3 grown by molecular-beam epitaxy journal, April 2008

High‐voltage bulk photovoltaic effect and the photorefractive process in LiNbO 3 journal, August 1974

Thickness dependence of piezoelectric property of ultrathin BiFeO3 films journal, June 2012

Strain dependence of polarization and piezoelectric response in epitaxial BiFeO 3 thin films journal, March 2012

Ultrafast carrier dynamics and radiative recombination in multiferroic BiFeO 3 journal, June 2012

Light-induced size changes in BiFeO3 crystals journal, July 2010

Design principles for shift current photovoltaics journal, January 2017

Realizing intrinsic piezoresponse in epitaxial submicron lead zirconate titanate capacitors on Si journal, November 2002

Bulk Photovoltaic Effect at Visible Wavelength in Epitaxial Ferroelectric BiFeO 3 Thin Films journal, April 2010

The SrTiO 3 /BiFeO 3 (001) interface: commutativity of energy band discontinuities journal, May 2013

Quantitative measurement of piezoelectric coefficient of thin film using a scanning evanescent microwave microscope journal, June 2008

Untilting BiFeO 3 : The influence of substrate boundary conditions in ultra-thin BiFeO 3 on SrTiO 3 journal, November 2013

Enhancement of Local Photovoltaic Current at Ferroelectric Domain Walls in BiFeO3 journal, February 2017

Separation of the Schottky barrier and polarization effects on the photocurrent of Pt sandwiched Pb(Zr0.20Ti0.80)O3 films journal, October 2008

Strain profiles in epitaxial films from x-ray Bragg diffraction phases journal, December 2000

Bulk photovoltaic effect in noncentrosymmetric crystals journal, July 2001

Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH3NH3PbI3 journal, October 2013

Physics and Applications of Bismuth Ferrite journal, June 2009

Domain-wall conduction in ferroelectric BiFeO3 controlled by accumulation of charged defects journal, November 2016

Efficient Photovoltaic Current Generation at Ferroelectric Domain Walls journal, September 2011

A new method for the determination of strain profiles in epitaxic thin films using X-ray diffraction journal, November 2003

Polaronic-type excitons in ferroelectric oxides: Microscopic calculations and experimental manifestation journal, March 2002

Metal-ferroelectric-metal heterostructures with Schottky contacts. I. Influence of the ferroelectric properties journal, December 2005

Switchable Ferroelectric Diode and Photovoltaic Effect in BiFeO 3 journal, February 2009

Dimensionless solution of the equation describing the effect of surface recombination on carrier decay in semiconductors journal, September 1994

Giant optical enhancement of strain gradient in ferroelectric BiFeO3 thin films and its physical origin journal, November 2015

Above-bandgap voltages from ferroelectric photovoltaic devices journal, January 2010

Remarkably enhanced photovoltaic effects and first-principles calculations in neodymium doped BiFeO3 journal, March 2017

Electronic Origin and Tailoring of Photovoltaic Effect in BiFeO 3 Single Crystals journal, October 2015

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Title: Nanoscale excitonic photovoltaic mechanism in ferroelectric BiFeO₃ thin films [Nanoscale excitonic mechanism underlying the bulk photovoltaic effect in ferroelectric BiFeO₃ thin films]

Evidences for the depletion region induced by the polarization of ferroelectric semiconductors
journal, December 2009

Optical band gap of BiFeO3 grown by molecular-beam epitaxy
journal, April 2008

High‐voltage bulk photovoltaic effect and the photorefractive process in LiNbO ₃
journal, August 1974

Thickness dependence of piezoelectric property of ultrathin BiFeO3 films
journal, June 2012

Strain dependence of polarization and piezoelectric response in epitaxial BiFeO ₃ thin films
journal, March 2012

Ultrafast carrier dynamics and radiative recombination in multiferroic BiFeO ₃
journal, June 2012

Light-induced size changes in BiFeO3 crystals
journal, July 2010

Design principles for shift current photovoltaics
journal, January 2017

Realizing intrinsic piezoresponse in epitaxial submicron lead zirconate titanate capacitors on Si
journal, November 2002

Bulk Photovoltaic Effect at Visible Wavelength in Epitaxial Ferroelectric BiFeO ₃ Thin Films
journal, April 2010

The SrTiO ₃ /BiFeO ₃ (001) interface: commutativity of energy band discontinuities
journal, May 2013

Quantitative measurement of piezoelectric coefficient of thin film using a scanning evanescent microwave microscope
journal, June 2008

Untilting BiFeO ₃ : The influence of substrate boundary conditions in ultra-thin BiFeO ₃ on SrTiO ₃
journal, November 2013

Enhancement of Local Photovoltaic Current at Ferroelectric Domain Walls in BiFeO3
journal, February 2017

Separation of the Schottky barrier and polarization effects on the photocurrent of Pt sandwiched Pb(Zr0.20Ti0.80)O3 films
journal, October 2008

Strain profiles in epitaxial films from x-ray Bragg diffraction phases
journal, December 2000

Bulk photovoltaic effect in noncentrosymmetric crystals
journal, July 2001

Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH₃NH₃PbI₃
journal, October 2013

Physics and Applications of Bismuth Ferrite
journal, June 2009

Domain-wall conduction in ferroelectric BiFeO3 controlled by accumulation of charged defects
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Efficient Photovoltaic Current Generation at Ferroelectric Domain Walls
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A new method for the determination of strain profiles in epitaxic thin films using X-ray diffraction
journal, November 2003

Polaronic-type excitons in ferroelectric oxides: Microscopic calculations and experimental manifestation
journal, March 2002

Metal-ferroelectric-metal heterostructures with Schottky contacts. I. Influence of the ferroelectric properties
journal, December 2005

Switchable Ferroelectric Diode and Photovoltaic Effect in BiFeO ₃
journal, February 2009

Dimensionless solution of the equation describing the effect of surface recombination on carrier decay in semiconductors
journal, September 1994

Giant optical enhancement of strain gradient in ferroelectric BiFeO3 thin films and its physical origin
journal, November 2015

Above-bandgap voltages from ferroelectric photovoltaic devices
journal, January 2010

Remarkably enhanced photovoltaic effects and first-principles calculations in neodymium doped BiFeO3
journal, March 2017

Electronic Origin and Tailoring of Photovoltaic Effect in BiFeO ₃ Single Crystals
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