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Title: Orientation of Ferroelectric Domains and Disappearance upon Heating Methylammonium Lead Triiodide Perovskite from Tetragonal to Cubic Phase

Journal Article · · ACS Applied Energy Materials

We study the spontaneous polarization of the archetypal semiconducting halide perovskite methylammonium lead triiodide (CH3NH3PbI3) that is currently being investigated for use in thin film solar cells and light-emitting diodes. Using both lateral and vertical piezoresponse force microscopy (PFM) to image polycrystalline thin films, we observed domains in the piezoresponse that reversibly appear and disappear below and above the tetragonal-to-cubic phase transition temperature. Importantly, we observe these domains to exhibit a piezoresponse that is predominantly in-plane for films with the (110) plane oriented parallel to the substrate, providing a measure of the polarization associated with specific crystal planes. We characterize the polarization and its temporal response using both local switching spectroscopy and time-dependent PFM spectra. These data show hysteresis loops with the polarization switching with bias but relaxing back on time scales of several minutes. Furthermore, our results suggest the existence of ferroelectric behavior due to off-center displacement of the Pb2+ cation, although the local polarization response is complicated by the presence of local ionic and electronic conductivity. Understanding the nature of these domains paves the way for further optimization of optoelectronic devices using CH3NH3PbI3 perovskite material.

Research Organization:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
SC0013957; DMR-1337173; ECC-1542101
OSTI ID:
1712718
Journal Information:
ACS Applied Energy Materials, Vol. 1, Issue 4; ISSN 2574-0962
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (22)

Ferroelectricity-free lead halide perovskites journal January 2019
On the ferroelectricity of CH3NH3PbI3 perovskites journal September 2019
Reply to: On the ferroelectricity of CH3NH3PbI3 perovskites journal September 2019
Light‐Ferroic Interaction in Hybrid Organic–Inorganic Perovskites journal September 2019
Ferroelectric Properties of Perovskite Thin Films and Their Implications for Solar Energy Conversion journal February 2019
Ferroelectric Poling of Methylammonium Lead Iodide Thin Films journal November 2019
Zur Rolle der Iodid‐Methylammonium‐Interaktion in der Ferroelektrizität in CH 3 NH 3 PbI 3 journal November 2019
Dielectric and ferroic properties of metal halide perovskites journal January 2019
Role of the Iodide–Methylammonium Interaction in the Ferroelectricity of CH 3 NH 3 PbI 3 journal November 2019
Probing the Microstructure of Methylammonium Lead Iodide Perovskite Solar Cells journal March 2019
Lattice strain causes non-radiative losses in halide perovskites journal January 2019
Challenges in 3D printing of piezoelectric materials journal April 2019
Domain boundaries in Luttinger-Tisza ordered dipole lattices journal April 2019
Polarization-enhanced photoelectric performance in a molecular ferroelectric hexane-1,6-diammonium pentaiodobismuth (HDA-BiI 5 )-based solar device journal January 2020
Ferroelectricity and stability measurements in perovskite solar cells journal December 2019
Dynamic behavior of CH 3 NH 3 PbI 3 perovskite twin domains journal August 2018
Role of the iodide–methylammonium interaction in the ferroelectricity of CH3NH3PbI3 text January 2019
Lattice strain causes non-radiative losses in halide perovskites text January 2019
Ferroelectric Properties of Perovskite Thin Films and Their Implications for Solar Energy Conversion text January 2019
Ferroelectricity and stability measurements in perovskite solar cells text January 2020
Review: Solid-state physics of halide perovskites preprint January 2018
Super-resolution and signal separation in contact Kelvin probe force microscopy of electrochemically active ferroelectric materials text January 2020