In Situ Method Correlating Raman Vibrational Characteristics to Chemical Expansion via Oxygen Nonstoichiometry of Perovskite Thin Films

doi:10.1002/adma.201902493

This content will become publicly available on June 24, 2020

Title: In Situ Method Correlating Raman Vibrational Characteristics to Chemical Expansion via Oxygen Nonstoichiometry of Perovskite Thin Films

Authors:

Sediva, Eva ^[1]; Defferriere, Thomas ^[2]; Perry, Nicola H. ^[3]; Tuller, Harry L. ^[2];

^[4]

Department of Materials Science and EngineeringMassachusetts Institute of Technology 77 Massachusetts Av. Cambridge MA 02139 USA, ETHZ Department of Materials Hönggerbergring 64 8093 Zürich Switzerland
Department of Materials Science and EngineeringMassachusetts Institute of Technology 77 Massachusetts Av. Cambridge MA 02139 USA
Department of Materials Science and Engineering and Materials Research LaboratoryUniversity of Illinois at Urbana‐Champaign 1304 W. Green St. Urbana IL 61801 USA, International Institute for Carbon‐Neutral Energy Research (WPI‐I2CNER)Kyushu University 744 Motooka Nishi‐ku Fukuoka 819‐0395 Japan
Department of Materials Science and EngineeringMassachusetts Institute of Technology 77 Massachusetts Av. Cambridge MA 02139 USA, ETHZ Department of Materials Hönggerbergring 64 8093 Zürich Switzerland, Department of Electrical Engineering and Computer ScienceMassachusetts Institute of Technology 77 Massachusetts Av. Cambridge MA 02139 USA

Publication Date:: 2019-06-25

Sponsoring Org.:: USDOE

OSTI Identifier:: 1529431

Grant/Contract Number:: [DE‐SC0002633]

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Advanced Materials

Additional Journal Information:: [Journal Name: Advanced Materials Journal Volume: 31 Journal Issue: 33]; Journal ID: ISSN 0935-9648

Publisher:: Wiley Blackwell (John Wiley & Sons)

Country of Publication:: Germany

Language:: English

Citation Formats


                    Sediva, Eva, Defferriere, Thomas, Perry, Nicola H., Tuller, Harry L., and Rupp, Jennifer L. M. In Situ Method Correlating Raman Vibrational Characteristics to Chemical Expansion via Oxygen Nonstoichiometry of Perovskite Thin Films.  Germany: N. p., 2019. 
        Web.  doi:10.1002/adma.201902493.

Copy to clipboard


                    Sediva, Eva, Defferriere, Thomas, Perry, Nicola H., Tuller, Harry L., & Rupp, Jennifer L. M. In Situ Method Correlating Raman Vibrational Characteristics to Chemical Expansion via Oxygen Nonstoichiometry of Perovskite Thin Films.  Germany.  doi:10.1002/adma.201902493.

Copy to clipboard


                    Sediva, Eva, Defferriere, Thomas, Perry, Nicola H., Tuller, Harry L., and Rupp, Jennifer L. M. Tue .  
        "In Situ Method Correlating Raman Vibrational Characteristics to Chemical Expansion via Oxygen Nonstoichiometry of Perovskite Thin Films".  Germany.  doi:10.1002/adma.201902493.

Copy to clipboard


                    
@article{osti_1529431,

  title        = {In Situ Method Correlating Raman Vibrational Characteristics to Chemical Expansion via Oxygen Nonstoichiometry of Perovskite Thin Films},

  author       = {Sediva, Eva and Defferriere, Thomas and Perry, Nicola H. and Tuller, Harry L. and Rupp, Jennifer L. M.},

  abstractNote = {},

  doi          = {10.1002/adma.201902493},

  journal      = {Advanced Materials},

  number       = [33],

  volume       = [31],

  place        = {Germany},

  year         = {2019},

  month        = {6}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

This content will become publicly available on June 24, 2020

Publisher's Version of Record

DOI: 10.1002/adma.201902493

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 1 work

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Resistive states in strontium titanate thin films: Bias effects and mechanisms at high and low temperature
journal, April 2017

Kubicek, M.; Taibl, S.; Navickas, E.
Journal of Electroceramics, Vol. 39, Issue 1-4
DOI: 10.1007/s10832-017-0081-2

Thin-film nano-thermogravimetry applied to praseodymium-cerium oxide films at high temperatures
journal, May 2018

Schröder, Sebastian; Fritze, Holger; Bishop, Sean
Applied Physics Letters, Vol. 112, Issue 21
DOI: 10.1063/1.5025389

Theoretical modeling of the complexes of iron impurities and oxygen vacancies in SrTiO ₃
journal, March 2013

Blokhin, Evgeny; Kotomin, Eugene; Kuzmin, Alexei
Applied Physics Letters, Vol. 102, Issue 11
DOI: 10.1063/1.4796182

Origins and Control of Optical Absorption in a Nondilute Oxide Solid Solution: Sr(Ti,Fe)O _{3– x} Perovskite Case Study
journal, January 2019

Perry, Nicola H.; Kim, Namhoon; Ertekin, Elif
Chemistry of Materials, Vol. 31, Issue 3
DOI: 10.1021/acs.chemmater.8b04580

Franck-Condon higher order lattice excitations in the $La {Fe}_{1 - x} {Cr}_{x} O_{3}$ ( $x = 0$ , 0.1, 0.5, 0.9, 1.0) perovskites due to Fe-Cr charge transfer effects
journal, March 2007

Andreasson, Jakob; Holmlund, Joakim; Knee, Christopher S.
Physical Review B, Vol. 75, Issue 10
DOI: 10.1103/PhysRevB.75.104302

Raman study of oxygen reduced and re-oxidized strontium titanate
journal, July 2007

Tenne, D. A.; Gonenli, I. E.; Soukiassian, A.
Physical Review B, Vol. 76, Issue 2
DOI: 10.1103/PhysRevB.76.024303

Raman and x‐ray studies of Ce _{1− x} RE _x O _{2− y} , where RE=La, Pr, Nd, Eu, Gd, and Tb
journal, August 1994

McBride, J. R.; Hass, K. C.; Poindexter, B. D.
Journal of Applied Physics, Vol. 76, Issue 4
DOI: 10.1063/1.357593

Operando reduction of elastic modulus in (Pr, Ce)O2− thin films
journal, February 2016

Swallow, Jessica G.; Kim, Jae Jin; Kabir, Mukul
Acta Materialia, Vol. 105
DOI: 10.1016/j.actamat.2015.12.007

Investigation of surface Sr segregation in model thin film solid oxidefuel cell perovskite electrodes
journal, January 2012

Jung, WooChul; Tuller, Harry L.
Energy Environ. Sci., Vol. 5, Issue 1
DOI: 10.1039/C1EE02762J

In situ examination of oxygen non-stoichiometry in La _0.80 Sr _0.20 CoO _3−δ thin films at intermediate and low temperatures by x-ray diffraction
journal, April 2014

Biegalski, M. D.; Crumlin, E.; Belianinov, A.
Applied Physics Letters, Vol. 104, Issue 16
DOI: 10.1063/1.4873542

Determination of Oxygen Vacancy Concentration in a Thin Film of La[sub 0.6]Sr[sub 0.4]CoO[sub 3−δ] by an Electrochemical Method
journal, January 2002

Kawada, T.; Suzuki, J.; Sase, M.
Journal of The Electrochemical Society, Vol. 149, Issue 7
DOI: 10.1149/1.1479728

Coexistence of Filamentary and Homogeneous Resistive Switching in Fe-Doped SrTiO₃ Thin-Film Memristive Devices
journal, August 2010

Muenstermann, Ruth; Menke, Tobias; Dittmann, Regina
Advanced Materials, Vol. 22, Issue 43, p. 4819-4822
DOI: 10.1002/adma.201001872

Dynamic chemical expansion of thin-film non-stoichiometric oxides at extreme temperatures
journal, May 2017

Swallow, Jessica G.; Kim, Jae Jin; Maloney, John M.
Nature Materials, Vol. 16, Issue 7
DOI: 10.1038/nmat4898

Jahn-Teller distortion around ${Fe}^{4 +}$ in $Sr ({Fe}_{x} {Ti}_{1 - x}) O_{3 - δ}$ from x-ray absorption spectroscopy, x-ray diffraction, and vibrational spectroscopy
journal, November 2007

Vračar, M.; Kuzmin, A.; Merkle, R.
Physical Review B, Vol. 76, Issue 17
DOI: 10.1103/PhysRevB.76.174107

Apparent Ionic Charges and Vibrational Eigenmodes of BaTi $O_{3}$ and Other Perovskites
journal, May 1967

Axe, J. D.
Physical Review, Vol. 157, Issue 2
DOI: 10.1103/PhysRev.157.429

Origin of soft-mode stiffening and reduced dielectric response in ${SrTiO}_{3}$ thin films
journal, December 2002

Ostapchuk, T.; Petzelt, J.; Železný, V.
Physical Review B, Vol. 66, Issue 23
DOI: 10.1103/PhysRevB.66.235406

Suitability of Raman Spectroscopy for Assessing Anisotropic Strain in Thin Films of Doped Ceria
journal, January 2019

Kraynis, Olga; Makagon, Evgeniy; Mishuk, Eran
Advanced Functional Materials, Vol. 29, Issue 11
DOI: 10.1002/adfm.201804433

Design of Oxygen Vacancy Configuration for Memristive Systems
journal, September 2017

Schmitt, Rafael; Spring, Jonathan; Korobko, Roman
ACS Nano, Vol. 11, Issue 9
DOI: 10.1021/acsnano.7b03116

Stress measurement for nonstoichiometric ceria films based on Raman spectroscopy
journal, October 2016

Li, Haibo; Zhang, Pengcheng; Li, Gan
Journal of Alloys and Compounds, Vol. 682
DOI: 10.1016/j.jallcom.2016.04.272

The electrical properties and stability of SrTi0.65Fe0.35O3−δ thin films for automotive oxygen sensor applications
journal, July 2005

Litzelman, Scott J.; Rothschild, Avner; Tuller, Harry L.
Sensors and Actuators B: Chemical, Vol. 108, Issue 1-2
DOI: 10.1016/j.snb.2004.10.040

Raman and infrared studies of ${La}_{1 - y} {Sr}_{y} {Mn}_{1 - x} M_{x} O_{3}$ ( $M = Cr$ , Co, Cu, Zn, Sc or Ga): Oxygen disorder and local vibrational modes
journal, June 2006

Dubroka, A.; Humlíček, J.; Abrashev, M. V.
Physical Review B, Vol. 73, Issue 22
DOI: 10.1103/PhysRevB.73.224401

Chemical Expansion: Implications for Electrochemical Energy Storage and Conversion Devices
journal, July 2014

Bishop, S. R.; Marrocchelli, D.; Chatzichristodoulou, C.
Annual Review of Materials Research, Vol. 44, Issue 1
DOI: 10.1146/annurev-matsci-070813-113329

Origin of morphotropic phase boundaries in ferroelectrics
journal, January 2008

Ahart, Muhtar; Somayazulu, Maddury; Cohen, R. E.
Nature, Vol. 451, Issue 7178
DOI: 10.1038/nature06459

Temperature-dependent structural characterization of sol-gel deposited strontium titanate (SrTiO3) thin films using Raman spectroscopy
journal, January 2001

Gupta, S.; Katiyar, R. S.
Journal of Raman Spectroscopy, Vol. 32, Issue 10
DOI: 10.1002/jrs.752

Raman spectroscopy of metals, high-temperature superconductors and related materials under high pressure
journal, January 2003

Goncharov, Alexander F.; Struzhkin, Viktor V.
Journal of Raman Spectroscopy, Vol. 34, Issue 7-8
DOI: 10.1002/jrs.1030

A piezomicrobalance system for high-temperature mass relaxation characterization of metal oxides: A case study of Pr-doped ceria
journal, December 2016

Simons, Philipp; Ji, Ho-Il; Davenport, Timothy C.
Journal of the American Ceramic Society, Vol. 100, Issue 3
DOI: 10.1111/jace.14652

Oxygen surface exchange kinetics measurement by simultaneous optical transmission relaxation and impedance spectroscopy: Sr(Ti,Fe)O _3-x thin film case study
journal, February 2018

Perry, Nicola H.; Kim, Jae Jin; Tuller, Harry L.
Science and Technology of Advanced Materials, Vol. 19, Issue 1
DOI: 10.1080/14686996.2018.1430448

Strongly coupled thermal and chemical expansion in the perovskite oxide system Sr(Ti,Fe)O _3−α
journal, January 2015

Perry, Nicola H.; Kim, Jae Jin; Bishop, Sean R.
Journal of Materials Chemistry A, Vol. 3, Issue 7
DOI: 10.1039/C4TA05247A

Raman scattering and phonon dispersion in Si and GaP at very high pressure
journal, August 1975

Weinstein, Bernard A.; Piermarini, G. J.
Physical Review B, Vol. 12, Issue 4
DOI: 10.1103/PhysRevB.12.1172

Raman scattering and x-ray-absorption spectroscopy in gallium nitride under high pressure
journal, January 1992

Perlin, Piotr; Jauberthie-Carillon, Claude; Itie, Jean Paul
Physical Review B, Vol. 45, Issue 1
DOI: 10.1103/PhysRevB.45.83

Thermal and Chemical Expansion of Sr-Doped Lanthanum Cobalt Oxide (La ₁ _- _x Sr _x CoO ₃ _- _δ )
journal, August 2005

Chen, ; Adler, Stuart B.
Chemistry of Materials, Vol. 17, Issue 17
DOI: 10.1021/cm050905h

The Electrochemical Properties of Sr(Ti,Fe)O _3-δ for Anodes in Solid Oxide Fuel Cells
journal, January 2017

Nenning, Andreas; Volgger, Lukas; Miller, Elizabeth
Journal of The Electrochemical Society, Vol. 164, Issue 4
DOI: 10.1149/2.1271704jes

Impedance spectra of Fe-doped SrTiO ₃ thin films upon bias voltage: inductive loops as a trace of ion motion
journal, January 2016

Taibl, S.; Fafilek, G.; Fleig, J.
Nanoscale, Vol. 8, Issue 29
DOI: 10.1039/C6NR00814C

Investigation of the Eightwise Switching Mechanism and Its Suppression in SrTiO ₃ Modulated by Humidity and Interchanged Top and Bottom Platinum and LaNiO ₃ Electrode Contacts
journal, November 2018

Sediva, Eva; Bowman, William J.; Gonzalez‐Rosillo, Juan Carlos
Advanced Electronic Materials, Vol. 5, Issue 9
DOI: 10.1002/aelm.201800566

Memristor Kinetics and Diffusion Characteristics for Mixed Anionic-Electronic SrTiO _3-δ Bits: The Memristor-Based Cottrell Analysis Connecting Material to Device Performance
journal, September 2014

Messerschmitt, Felix; Kubicek, Markus; Schweiger, Sebastian
Advanced Functional Materials, Vol. 24, Issue 47
DOI: 10.1002/adfm.201402286

Observation of the First-Order Raman Scattering in ${SrTiO}_{3}$ Thin Films
journal, May 1999

Sirenko, A. A.; Akimov, I. A.; Fox, J. R.
Physical Review Letters, Vol. 82, Issue 22
DOI: 10.1103/PhysRevLett.82.4500

The effect of mechanical twisting on oxygen ionic transport in solid-state energy conversion membranes
journal, June 2015

Shi, Yanuo; Bork, Alexander Hansen; Schweiger, Sebastian
Nature Materials, Vol. 14, Issue 7
DOI: 10.1038/nmat4278

First-principles phonon calculations of Fe ⁴⁺ impurity in SrTiO ₃
journal, February 2012

Blokhin, E.; Kotomin, E. A.; Maier, J.
Journal of Physics: Condensed Matter, Vol. 24, Issue 10
DOI: 10.1088/0953-8984/24/10/104024

(Invited) Understanding and Controlling Chemo-Mechanical Coupling in Perovskite Oxides
journal, July 2016

Perry, N. H.; Marrocchelli, D.; Bishop, S. R.
ECS Transactions, Vol. 72, Issue 24
DOI: 10.1149/07224.0001ecst

Investigation of nanoporous platinum thin films fabricated by reactive sputtering: Application as micro-SOFC electrode
journal, February 2015

Jung, WooChul; Kim, Jae Jin; Tuller, Harry L.
Journal of Power Sources, Vol. 275
DOI: 10.1016/j.jpowsour.2014.11.084

Atomic Resolution Imaging of Nanoscale Chemical Expansion in Pr _x Ce _{1– x} O _2−δ during In Situ Heating
journal, January 2018

Swallow, Jessica G.; Lee, Ja Kyung; Defferriere, Thomas
ACS Nano, Vol. 12, Issue 2
DOI: 10.1021/acsnano.7b07732

Chemical Expansivity of Electrochemical Ceramics
journal, September 2001

Adler, Stuart B.
Journal of the American Ceramic Society, Vol. 84, Issue 9
DOI: 10.1111/j.1151-2916.2001.tb00968.x

Voltage-Controlled Nonstoichiometry in Oxide Thin Films: Pr _0.1 Ce _0.9 O _2−δ Case Study
journal, October 2014

Chen, Di; Tuller, Harry L.
Advanced Functional Materials, Vol. 24, Issue 48
DOI: 10.1002/adfm.201402050

Metal–oxide bilayer Raman scattering in SrTiO3 thin films
journal, June 1998

Merkulov, Vladimir I.; Fox, Jon R.; Li, Hong-Cheng
Applied Physics Letters, Vol. 72, Issue 25
DOI: 10.1063/1.121627

A solid oxide photoelectrochemical cell with UV light-driven oxygen storage in mixed conducting electrodes
journal, January 2017

Walch, Gregor; Rotter, Bernhard; Brunauer, Georg Christoph
Journal of Materials Chemistry A, Vol. 5, Issue 4
DOI: 10.1039/C6TA08110J

Phonon calculations in cubic and tetragonal phases of SrTiO $_{3}$ : A comparative LCAO and plane-wave study
journal, April 2011

Evarestov, Robert A.; Blokhin, Evgeny; Gryaznov, Denis
Physical Review B, Vol. 83, Issue 13
DOI: 10.1103/PhysRevB.83.134108

Uncovering Two Competing Switching Mechanisms for Epitaxial and Ultrathin Strontium Titanate-Based Resistive Switching Bits
journal, October 2015

Kubicek, Markus; Schmitt, Rafael; Messerschmitt, Felix
ACS Nano, Vol. 9, Issue 11
DOI: 10.1021/acsnano.5b02752

Temperature dependence of Raman scattering in $ZnO$
journal, April 2007

Cuscó, Ramon; Alarcón-Lladó, Esther; Ibáñez, Jordi
Physical Review B, Vol. 75, Issue 16
DOI: 10.1103/PhysRevB.75.165202

Electronic Structure, Defect Chemistry, and Transport Properties of SrTi ₁ _- _x Fe _x O ₃ _- _y Solid Solutions
journal, August 2006

Rothschild, Avner; Menesklou, Wolfgang; Tuller, Harry L.
Chemistry of Materials, Vol. 18, Issue 16
DOI: 10.1021/cm052803x

Probing oxygen vacancy concentration and homogeneity in solid-oxide fuel-cell cathode materials on the subunit-cell level
journal, August 2012

Kim, Young-Min; He, Jun; Biegalski, Michael D.
Nature Materials, Vol. 11, Issue 10
DOI: 10.1038/nmat3393

Similar Records in DOE PAGES and OSTI.GOV collections:

Dynamic chemical expansion of thin-film non-stoichiometric oxides at extreme temperatures

Journal Article Swallow, Jessica G. ; Kim, Jae Jin ; Maloney, John M. ; ... - Nature Materials

Actuator operation in increasingly extreme and remote conditions requires materials that reliably sense and actuate at elevated temperatures, and over a range of gas environments. Design of such materials will rely on high-temperature, high-resolution approaches for characterizing material actuation in situ. In this work, we demonstrate a novel type of high-temperature, low-voltage electromechanical oxide actuator based on the model material Pr _xCe _1-xO _2-δ (PCO). Chemical strain and interfacial stress resulted from electrochemically pumping oxygen into or out of PCO films, leading to measurable film volume changes due to chemical expansion. At 650 °C, nanometre-scale displacement and strain of >0.1%more »« less
Cited by 8
DOI: 10.1038/nmat4898

Full Text Available
Frequency-based detection of chemical expansion dynamics in thin films

Patent Swallow, Jessica G. ; Van Vliet, Krystyn J. ; Tuller, Harry L. ; ...

Current techniques for measuring chemical expansion in thin film structures are too slow, too imprecise, or require synchrotrons. In contrast, nanoscale electrochemomechanical spectroscopy (NECS) can be used to make nanoscale measurements at time scales of seconds with simple contact or non-contact sensors. In a NECS measurement, a sample, such as thin-film oxide structure, is subjected to a temporally modulated stimulus, such as a sinusoidally alternating voltage. The stimulus causes the sample to expand, contract, deflect, or otherwise deform. A sensor, such as a contact probe or optical sensor, produces an electrical signal in response to this deformation that is correlatedmore »« less
Full Text Available
Chemical expansion of praseodymium-cerium oxide films at high temperatures by laser doppler vibrometry

Journal Article Schmidtchen, Silja ; Fritze, Holger ; Bishop, Sean ; ... - Solid State Ionics
Cited by 1
DOI: 10.1016/j.ssi.2018.01.033
Thin-film nano-thermogravimetry applied to praseodymium-cerium oxide films at high temperatures

Journal Article Schröder, Sebastian ; Fritze, Holger ; Bishop, Sean ; ... - Applied Physics Letters

High precision measurements of oxygen nonstoichiometry δ in thin film metal oxides M _aO _b±δ at elevated temperatures and controlled oxygen partial pressures pO2 are reported with the aid of resonant microbalances. The resonant microbalances applied here consisted of y-cut langasite (La ₃Ga ₅SiO ₁₄) and CTGS (Ca ₃TaGa ₃Si ₂O ₁₄) piezoelectric resonators, operated in the thickness shear mode at ~5 MHz. Measurements of variations in δ of Pr _0.1Ce _0.9O _2-δ (PCO) films are reported for the oxygen partial pressure range from 10 ^–8 bar to 0.2 bar at 700 °C, and these findings were discovered to bemore »« less
DOI: 10.1063/1.5025389

Full Text Available
A Low-Temperature, Solution-Processable, Cu-Doped Nickel Oxide Hole-Transporting Layer via the Combustion Method for High-Performance Thin-Film Perovskite Solar Cells

Journal Article Jung, Jae Woong ; Chueh, Chu-Chen ; Jen, Alex K. -Y. - Advanced Materials

The promising photophysical properties of the emerging organometallic halide perovskites, such as intense broadband absorption, high charge carrier mobility, and long charge diffusion length, have enabled the rapid development in solar cells reaching over 20% power conversion effi ciency (PCE) recently. Especially, the low material cost and facile solution processability of perovskites are very attractive as next-generation photovoltaic materials for sustainable energy.
Cited by 86
DOI: 10.1002/adma.201503298

Full Text Available

Similar Records

This content will become publicly available on June 24, 2020

Title: In Situ Method Correlating Raman Vibrational Characteristics to Chemical Expansion via Oxygen Nonstoichiometry of Perovskite Thin Films

Citation Formats

Resistive states in strontium titanate thin films: Bias effects and mechanisms at high and low temperature journal, April 2017

Thin-film nano-thermogravimetry applied to praseodymium-cerium oxide films at high temperatures journal, May 2018

Theoretical modeling of the complexes of iron impurities and oxygen vacancies in SrTiO 3 journal, March 2013

Origins and Control of Optical Absorption in a Nondilute Oxide Solid Solution: Sr(Ti,Fe)O 3– x Perovskite Case Study journal, January 2019

Franck-Condon higher order lattice excitations in the La Fe 1 − x Cr x O 3 ( x = 0 , 0.1, 0.5, 0.9, 1.0) perovskites due to Fe-Cr charge transfer effects journal, March 2007

Raman study of oxygen reduced and re-oxidized strontium titanate journal, July 2007

Raman and x‐ray studies of Ce 1− x RE x O 2− y , where RE=La, Pr, Nd, Eu, Gd, and Tb journal, August 1994

Operando reduction of elastic modulus in (Pr, Ce)O2− thin films journal, February 2016

Investigation of surface Sr segregation in model thin film solid oxidefuel cell perovskite electrodes journal, January 2012

In situ examination of oxygen non-stoichiometry in La 0.80 Sr 0.20 CoO 3−δ thin films at intermediate and low temperatures by x-ray diffraction journal, April 2014

Determination of Oxygen Vacancy Concentration in a Thin Film of La[sub 0.6]Sr[sub 0.4]CoO[sub 3−δ] by an Electrochemical Method journal, January 2002

Coexistence of Filamentary and Homogeneous Resistive Switching in Fe-Doped SrTiO3 Thin-Film Memristive Devices journal, August 2010

Dynamic chemical expansion of thin-film non-stoichiometric oxides at extreme temperatures journal, May 2017

Jahn-Teller distortion around Fe 4 + in Sr ( Fe x Ti 1 − x ) O 3 − δ from x-ray absorption spectroscopy, x-ray diffraction, and vibrational spectroscopy journal, November 2007

Apparent Ionic Charges and Vibrational Eigenmodes of BaTi O 3 and Other Perovskites journal, May 1967

Origin of soft-mode stiffening and reduced dielectric response in SrTiO 3 thin films journal, December 2002

Suitability of Raman Spectroscopy for Assessing Anisotropic Strain in Thin Films of Doped Ceria journal, January 2019

Design of Oxygen Vacancy Configuration for Memristive Systems journal, September 2017

Stress measurement for nonstoichiometric ceria films based on Raman spectroscopy journal, October 2016

The electrical properties and stability of SrTi0.65Fe0.35O3−δ thin films for automotive oxygen sensor applications journal, July 2005

Raman and infrared studies of La 1 − y Sr y Mn 1 − x M x O 3 ( M = Cr , Co, Cu, Zn, Sc or Ga): Oxygen disorder and local vibrational modes journal, June 2006

Chemical Expansion: Implications for Electrochemical Energy Storage and Conversion Devices journal, July 2014

Origin of morphotropic phase boundaries in ferroelectrics journal, January 2008

Temperature-dependent structural characterization of sol-gel deposited strontium titanate (SrTiO3) thin films using Raman spectroscopy journal, January 2001

Raman spectroscopy of metals, high-temperature superconductors and related materials under high pressure journal, January 2003

A piezomicrobalance system for high-temperature mass relaxation characterization of metal oxides: A case study of Pr-doped ceria journal, December 2016

Oxygen surface exchange kinetics measurement by simultaneous optical transmission relaxation and impedance spectroscopy: Sr(Ti,Fe)O 3-x thin film case study journal, February 2018

Strongly coupled thermal and chemical expansion in the perovskite oxide system Sr(Ti,Fe)O 3−α journal, January 2015

Raman scattering and phonon dispersion in Si and GaP at very high pressure journal, August 1975

Raman scattering and x-ray-absorption spectroscopy in gallium nitride under high pressure journal, January 1992

Thermal and Chemical Expansion of Sr-Doped Lanthanum Cobalt Oxide (La 1 - x Sr x CoO 3 - δ ) journal, August 2005

The Electrochemical Properties of Sr(Ti,Fe)O 3-δ for Anodes in Solid Oxide Fuel Cells journal, January 2017

Impedance spectra of Fe-doped SrTiO 3 thin films upon bias voltage: inductive loops as a trace of ion motion journal, January 2016

Investigation of the Eightwise Switching Mechanism and Its Suppression in SrTiO 3 Modulated by Humidity and Interchanged Top and Bottom Platinum and LaNiO 3 Electrode Contacts journal, November 2018

Memristor Kinetics and Diffusion Characteristics for Mixed Anionic-Electronic SrTiO 3-δ Bits: The Memristor-Based Cottrell Analysis Connecting Material to Device Performance journal, September 2014

Observation of the First-Order Raman Scattering in SrTiO 3 Thin Films journal, May 1999

The effect of mechanical twisting on oxygen ionic transport in solid-state energy conversion membranes journal, June 2015

First-principles phonon calculations of Fe 4+ impurity in SrTiO 3 journal, February 2012

(Invited) Understanding and Controlling Chemo-Mechanical Coupling in Perovskite Oxides journal, July 2016

Investigation of nanoporous platinum thin films fabricated by reactive sputtering: Application as micro-SOFC electrode journal, February 2015

Atomic Resolution Imaging of Nanoscale Chemical Expansion in Pr x Ce 1– x O 2−δ during In Situ Heating journal, January 2018

Chemical Expansivity of Electrochemical Ceramics journal, September 2001

Voltage-Controlled Nonstoichiometry in Oxide Thin Films: Pr 0.1 Ce 0.9 O 2−δ Case Study journal, October 2014

Metal–oxide bilayer Raman scattering in SrTiO3 thin films journal, June 1998

A solid oxide photoelectrochemical cell with UV light-driven oxygen storage in mixed conducting electrodes journal, January 2017

Phonon calculations in cubic and tetragonal phases of SrTiO 3 : A comparative LCAO and plane-wave study journal, April 2011

Uncovering Two Competing Switching Mechanisms for Epitaxial and Ultrathin Strontium Titanate-Based Resistive Switching Bits journal, October 2015

Temperature dependence of Raman scattering in ZnO journal, April 2007

Electronic Structure, Defect Chemistry, and Transport Properties of SrTi 1 - x Fe x O 3 - y Solid Solutions journal, August 2006

Probing oxygen vacancy concentration and homogeneity in solid-oxide fuel-cell cathode materials on the subunit-cell level journal, August 2012

Resistive states in strontium titanate thin films: Bias effects and mechanisms at high and low temperature
journal, April 2017

Thin-film nano-thermogravimetry applied to praseodymium-cerium oxide films at high temperatures
journal, May 2018

Theoretical modeling of the complexes of iron impurities and oxygen vacancies in SrTiO ₃
journal, March 2013

Origins and Control of Optical Absorption in a Nondilute Oxide Solid Solution: Sr(Ti,Fe)O _{3– x} Perovskite Case Study
journal, January 2019

Franck-Condon higher order lattice excitations in the $La {Fe}_{1 - x} {Cr}_{x} O_{3}$ ( $x = 0$ , 0.1, 0.5, 0.9, 1.0) perovskites due to Fe-Cr charge transfer effects
journal, March 2007

Raman study of oxygen reduced and re-oxidized strontium titanate
journal, July 2007

Raman and x‐ray studies of Ce _{1− x} RE _x O _{2− y} , where RE=La, Pr, Nd, Eu, Gd, and Tb
journal, August 1994

Operando reduction of elastic modulus in (Pr, Ce)O2− thin films
journal, February 2016

Investigation of surface Sr segregation in model thin film solid oxidefuel cell perovskite electrodes
journal, January 2012

In situ examination of oxygen non-stoichiometry in La _0.80 Sr _0.20 CoO _3−δ thin films at intermediate and low temperatures by x-ray diffraction
journal, April 2014

Determination of Oxygen Vacancy Concentration in a Thin Film of La[sub 0.6]Sr[sub 0.4]CoO[sub 3−δ] by an Electrochemical Method
journal, January 2002

Coexistence of Filamentary and Homogeneous Resistive Switching in Fe-Doped SrTiO₃ Thin-Film Memristive Devices
journal, August 2010

Dynamic chemical expansion of thin-film non-stoichiometric oxides at extreme temperatures
journal, May 2017

Jahn-Teller distortion around ${Fe}^{4 +}$ in $Sr ({Fe}_{x} {Ti}_{1 - x}) O_{3 - δ}$ from x-ray absorption spectroscopy, x-ray diffraction, and vibrational spectroscopy
journal, November 2007

Apparent Ionic Charges and Vibrational Eigenmodes of BaTi $O_{3}$ and Other Perovskites
journal, May 1967

Origin of soft-mode stiffening and reduced dielectric response in ${SrTiO}_{3}$ thin films
journal, December 2002

Suitability of Raman Spectroscopy for Assessing Anisotropic Strain in Thin Films of Doped Ceria
journal, January 2019

Design of Oxygen Vacancy Configuration for Memristive Systems
journal, September 2017

Stress measurement for nonstoichiometric ceria films based on Raman spectroscopy
journal, October 2016

The electrical properties and stability of SrTi0.65Fe0.35O3−δ thin films for automotive oxygen sensor applications
journal, July 2005

Raman and infrared studies of ${La}_{1 - y} {Sr}_{y} {Mn}_{1 - x} M_{x} O_{3}$ ( $M = Cr$ , Co, Cu, Zn, Sc or Ga): Oxygen disorder and local vibrational modes
journal, June 2006

Chemical Expansion: Implications for Electrochemical Energy Storage and Conversion Devices
journal, July 2014

Origin of morphotropic phase boundaries in ferroelectrics
journal, January 2008

Temperature-dependent structural characterization of sol-gel deposited strontium titanate (SrTiO3) thin films using Raman spectroscopy
journal, January 2001

Raman spectroscopy of metals, high-temperature superconductors and related materials under high pressure
journal, January 2003

A piezomicrobalance system for high-temperature mass relaxation characterization of metal oxides: A case study of Pr-doped ceria
journal, December 2016

Oxygen surface exchange kinetics measurement by simultaneous optical transmission relaxation and impedance spectroscopy: Sr(Ti,Fe)O _3-x thin film case study
journal, February 2018

Strongly coupled thermal and chemical expansion in the perovskite oxide system Sr(Ti,Fe)O _3−α
journal, January 2015

Raman scattering and phonon dispersion in Si and GaP at very high pressure
journal, August 1975

Raman scattering and x-ray-absorption spectroscopy in gallium nitride under high pressure
journal, January 1992

Thermal and Chemical Expansion of Sr-Doped Lanthanum Cobalt Oxide (La ₁ _- _x Sr _x CoO ₃ _- _δ )
journal, August 2005

The Electrochemical Properties of Sr(Ti,Fe)O _3-δ for Anodes in Solid Oxide Fuel Cells
journal, January 2017

Impedance spectra of Fe-doped SrTiO ₃ thin films upon bias voltage: inductive loops as a trace of ion motion
journal, January 2016

Investigation of the Eightwise Switching Mechanism and Its Suppression in SrTiO ₃ Modulated by Humidity and Interchanged Top and Bottom Platinum and LaNiO ₃ Electrode Contacts
journal, November 2018

Memristor Kinetics and Diffusion Characteristics for Mixed Anionic-Electronic SrTiO _3-δ Bits: The Memristor-Based Cottrell Analysis Connecting Material to Device Performance
journal, September 2014

Observation of the First-Order Raman Scattering in ${SrTiO}_{3}$ Thin Films
journal, May 1999

The effect of mechanical twisting on oxygen ionic transport in solid-state energy conversion membranes
journal, June 2015

First-principles phonon calculations of Fe ⁴⁺ impurity in SrTiO ₃
journal, February 2012

(Invited) Understanding and Controlling Chemo-Mechanical Coupling in Perovskite Oxides
journal, July 2016

Investigation of nanoporous platinum thin films fabricated by reactive sputtering: Application as micro-SOFC electrode
journal, February 2015

Atomic Resolution Imaging of Nanoscale Chemical Expansion in Pr _x Ce _{1– x} O _2−δ during In Situ Heating
journal, January 2018

Chemical Expansivity of Electrochemical Ceramics
journal, September 2001

Voltage-Controlled Nonstoichiometry in Oxide Thin Films: Pr _0.1 Ce _0.9 O _2−δ Case Study
journal, October 2014

Metal–oxide bilayer Raman scattering in SrTiO3 thin films
journal, June 1998

A solid oxide photoelectrochemical cell with UV light-driven oxygen storage in mixed conducting electrodes
journal, January 2017

Phonon calculations in cubic and tetragonal phases of SrTiO $_{3}$ : A comparative LCAO and plane-wave study
journal, April 2011

Uncovering Two Competing Switching Mechanisms for Epitaxial and Ultrathin Strontium Titanate-Based Resistive Switching Bits
journal, October 2015

Temperature dependence of Raman scattering in $ZnO$
journal, April 2007

Electronic Structure, Defect Chemistry, and Transport Properties of SrTi ₁ _- _x Fe _x O ₃ _- _y Solid Solutions
journal, August 2006

Probing oxygen vacancy concentration and homogeneity in solid-oxide fuel-cell cathode materials on the subunit-cell level
journal, August 2012