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Title: The existence and impact of persistent ferroelectric domains in MAPbI3

Journal Article · · Science Advances
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4];  [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. National Renewable Energy Lab. (NREL), Golden, CO (United States); Institut Photovoltaique d'lle de France, Palaiseau (France)
  4. Colorado School of Mines, Golden, CO (United States)
  5. Colorado State Univ., Fort Collins, CO (United States)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  7. The Pennsylvania State Univ., University Park, PA (United States)

Methylammonium lead iodide (MAPbI3) exhibits exceptional photovoltaic performance, but there remains substantial controversy over the existence and impact of ferroelectricity on the photovoltaic response. We confirm ferroelectricity in MAPbI3single crystals and demonstrate mediation of the electronic response by ferroelectric domain engineering. The ferroelectric response sharply declines above 57°C, consistent with the tetragonal-to-cubic phase transition. Concurrent band excitation piezoresponse force microscopy–contact Kelvin probe force microscopy shows that the measured response is not dominated by spurious electrostatic interactions. Large signal poling (>16 V/cm) orients the permanent polarization into large domains, which show stabilization over weeks. X-ray photoemission spectroscopy results indicate a shift of 400 meV in the binding energy of the iodine core level peaks upon poling, which is reflected in the carrier concentration results from scanning microwave impedance microscopy. The ability to control the ferroelectric response provides routes to increase device stability and photovoltaic performance through domain engineering.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Next Generation of Materials by Design: Incorporating Metastability (CNGMD); National Renewable Energy Laboratory (NREL), Golden, CO (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC36-08GO28308; AC02-05CH11231
OSTI ID:
1494979
Alternate ID(s):
OSTI ID: 1560588
Report Number(s):
NREL/JA-5K00-68090
Journal Information:
Science Advances, Vol. 5, Issue 1; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 60 works
Citation information provided by
Web of Science

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Cited By (12)

Nanoscale Insights into Photovoltaic Hysteresis in Triple‐Cation Mixed‐Halide Perovskite: Resolving the Role of Polarization and Ionic Migration journal June 2019
Spintronics of Hybrid Organic–Inorganic Perovskites: Miraculous Basis of Integrated Optoelectronic Devices journal June 2019
Imaging Metal Halide Perovskites Material and Properties at the Nanoscale journal December 2019
Heterogeneity at multiple length scales in halide perovskite semiconductors journal July 2019
Kinetic and material properties of interfaces governing slow response and long timescale phenomena in perovskite solar cells journal January 2019
Ferroelectricity-free lead halide perovskites journal January 2019
Ferroelastic domains drive charge separation and suppress electron–hole recombination in all-inorganic halide perovskites: time-domain ab initio analysis journal January 2020
Monocrystalline perovskite wafers/thin films for photovoltaic and transistor applications journal January 2019
Domain boundaries in Luttinger-Tisza ordered dipole lattices journal April 2019
Coherent charge-phonon correlations and exciton dynamics in orthorhombic CH 3 NH 3 PbI 3 measured by ultrafast multi-THz spectroscopy journal December 2019
Heterogeneity at multiple length scales in halide perovskite semiconductors text January 2019
Polarization Origin of Photoconductivity in MAPbI3 Thin Films text January 2020

Figures / Tables (4)


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