Title: Super-resolution and signal separation in contact Kelvin probe force microscopy of electrochemically active ferroelectric materials

Journal Article · · Journal of Applied Physics
DOI: https://doi.org/10.1063/5.0013847 · OSTI ID:1649367

In this work, imaging mechanisms in contact Kelvin probe force microscopy (cKPFM) are explored via information theory-based methods. Gaussian processes are used to achieve super-resolution in the cKPFM signal, effectively extrapolating across the spatial and parameter space. Tensor factorization is applied to reduce the multidimensional signal to the tensor convolution of the scalar functions that show a clear trending behavior with the imaging parameters. These methods establish a workflow for the analysis of the multidimensional datasets that can then be related to the relevant physical mechanisms. We also provide an interactive Google Colab notebook that goes through all the analyses discussed in the paper.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1649367
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 128; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (50)

Orientation of Ferroelectric Domains and Disappearance upon Heating Methylammonium Lead Triiodide Perovskite from Tetragonal to Cubic Phase journal March 2018
Differentiating Ferroelectric and Nonferroelectric Electromechanical Effects with Scanning Probe Microscopy journal May 2015
Electromechanical probing of ionic currents in energy storage materials journal May 2010
Nanoscale ferroelectrics: processing, characterization and future trends journal July 2006
Equilibrium and stability of polarization in ultrathin ferroelectric films with ionic surface compensation journal August 2011
Nanoscale Visualization and Control of Ferroelectric Domains by Atomic Force Microscopy journal May 1995
Local probing of ionic diffusion by electrochemical strain microscopy: spatial resolution and signal formation mechanisms text January 2010
Kernel Interpolation for Scalable Structured Gaussian Processes (KISS-GP) preprint January 2015
TensorLy: Tensor Learning in Python preprint January 2016
GPyTorch: Blackbox Matrix-Matrix Gaussian Process Inference with GPU Acceleration preprint January 2018
Imaging Mechanism for Hyperspectral Scanning Probe Microscopy via Gaussian Process Modelling preprint January 2019
Insertion Electrode Materials for Rechargeable Lithium Batteries journal July 1998
Nanoscale Insights into Photovoltaic Hysteresis in Triple‐Cation Mixed‐Halide Perovskite: Resolving the Role of Polarization and Ionic Migration journal June 2019
Ferroelastic Fingerprints in Methylammonium Lead Iodide Perovskite journal January 2016
Orientation of Ferroelectric Domains and Disappearance upon Heating Methylammonium Lead Triiodide Perovskite from Tetragonal to Cubic Phase journal March 2018
Surface Chemistry Controls Anomalous Ferroelectric Behavior in Lithium Niobate journal July 2018
Differentiating Ferroelectric and Nonferroelectric Electromechanical Effects with Scanning Probe Microscopy journal May 2015
Factors Governing Oxygen Reduction in Solid Oxide Fuel Cell Cathodes † journal October 2004
Real Space Mapping of Li-Ion Transport in Amorphous Si Anodes with Nanometer Resolution journal September 2010
Decoupling Electrochemical Reaction and Diffusion Processes in Ionically-Conductive Solids on the Nanometer Scale journal November 2010
Compositional engineering of perovskite materials for high-performance solar cells journal January 2015
Large field-induced strains in a lead-free piezoelectric material journal January 2011
Mixed electrochemical–ferroelectric states in nanoscale ferroelectrics journal May 2017
Light- and bias-induced structural variations in metal halide perovskites journal January 2019
Imaging mechanism for hyperspectral scanning probe microscopy via Gaussian process modelling journal March 2020
Chemical nature of ferroelastic twin domains in CH3NH3PbI3 perovskite journal August 2018
Exploration of the compositional space for mixed lead halogen perovskites for high efficiency solar cells journal January 2016
Ferroelectric domains in methylammonium lead iodide perovskite thin-films journal January 2017
To switch or not to switch – a machine learning approach for ferroelectricity journal January 2020
Role of 90° domains in lead zirconate titanate thin films journal July 2000
Rapid multidimensional data acquisition in scanning probe microscopy applied to local polarization dynamics and voltage dependent contact mechanics journal September 2008
Electromechanical probing of ionic currents in energy storage materials journal May 2010
Local probing of ionic diffusion by electrochemical strain microscopy: Spatial resolution and signal formation mechanisms journal September 2010
Landau-Ginzburg-Devonshire theory for electromechanical hysteresis loop formation in piezoresponse force microscopy of thin films journal September 2011
Dynamic piezoresponse force microscopy: Spatially resolved probing of polarization dynamics in time and voltage domains journal September 2012
Ferroelectric or non-ferroelectric: Why so many materials exhibit “ferroelectricity” on the nanoscale journal June 2017
Dynamic behavior of CH 3 NH 3 PbI 3 perovskite twin domains journal August 2018
Intrinsic single-domain switching in ferroelectric materials on a nearly ideal surface journal December 2007
Nanoscale ferroelectrics: processing, characterization and future trends journal July 2006
The band excitation method in scanning probe microscopy for rapid mapping of energy dissipation on the nanoscale journal September 2007
Dual-frequency resonance-tracking atomic force microscopy journal October 2007
Scanning force microscopy of domain structure in ferroelectric thin films: imaging and control journal September 1997
Thermodynamics of electromechanically coupled mixed ionic-electronic conductors: Deformation potential, Vegard strains, and flexoelectric effect journal May 2011
Equilibrium and stability of polarization in ultrathin ferroelectric films with ionic surface compensation journal August 2011
Reversible Chemical Switching of a Ferroelectric Film journal January 2009
Equilibrium Polarization of Ultrathin PbTiO 3 with Surface Compensation Controlled by Oxygen Partial Pressure journal October 2011
Nanoscale Visualization and Control of Ferroelectric Domains by Atomic Force Microscopy journal May 1995
Efficient Learning of Image Super-Resolution and Compression Artifact Removal with Semi-Local Gaussian Processes journal September 2015
CH 3 NH 3 PbI 3 perovskites: Ferroelasticity revealed journal April 2017
Gaussian Processes for Machine Learning book January 2005