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Title: Real space mapping of oxygen vacancy diffusion and electrochemical transformations by hysteretic current reversal curve measurements

Abstract

An excitation voltage biases an ionic conducting material sample over a nanoscale grid. The bias sweeps a modulated voltage with increasing maximal amplitudes. A current response is measured at grid locations. Current response reversal curves are mapped over maximal amplitudes of the bias cycles. Reversal curves are averaged over the grid for each bias cycle and mapped over maximal bias amplitudes for each bias cycle. Average reversal curve areas are mapped over maximal amplitudes of the bias cycles. Thresholds are determined for onset and ending of electrochemical activity. A predetermined number of bias sweeps may vary in frequency where each sweep has a constant number of cycles and reversal response curves may indicate ionic diffusion kinetics.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1133818
Patent Number(s):
8752211
Application Number:
13/566,327
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01Q - SCANNING-PROBE TECHNIQUES OR APPARATUS
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Kalinin, Sergei V., Balke, Nina, Borisevich, Albina Y., Jesse, Stephen, Maksymovych, Petro, Kim, Yunseok, and Strelcov, Evgheni. Real space mapping of oxygen vacancy diffusion and electrochemical transformations by hysteretic current reversal curve measurements. United States: N. p., 2014. Web.
Kalinin, Sergei V., Balke, Nina, Borisevich, Albina Y., Jesse, Stephen, Maksymovych, Petro, Kim, Yunseok, & Strelcov, Evgheni. Real space mapping of oxygen vacancy diffusion and electrochemical transformations by hysteretic current reversal curve measurements. United States.
Kalinin, Sergei V., Balke, Nina, Borisevich, Albina Y., Jesse, Stephen, Maksymovych, Petro, Kim, Yunseok, and Strelcov, Evgheni. Tue . "Real space mapping of oxygen vacancy diffusion and electrochemical transformations by hysteretic current reversal curve measurements". United States. https://www.osti.gov/servlets/purl/1133818.
@article{osti_1133818,
title = {Real space mapping of oxygen vacancy diffusion and electrochemical transformations by hysteretic current reversal curve measurements},
author = {Kalinin, Sergei V. and Balke, Nina and Borisevich, Albina Y. and Jesse, Stephen and Maksymovych, Petro and Kim, Yunseok and Strelcov, Evgheni},
abstractNote = {An excitation voltage biases an ionic conducting material sample over a nanoscale grid. The bias sweeps a modulated voltage with increasing maximal amplitudes. A current response is measured at grid locations. Current response reversal curves are mapped over maximal amplitudes of the bias cycles. Reversal curves are averaged over the grid for each bias cycle and mapped over maximal bias amplitudes for each bias cycle. Average reversal curve areas are mapped over maximal amplitudes of the bias cycles. Thresholds are determined for onset and ending of electrochemical activity. A predetermined number of bias sweeps may vary in frequency where each sweep has a constant number of cycles and reversal response curves may indicate ionic diffusion kinetics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {6}
}

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