All-Solid-State Electro-Chemo-Mechanical Actuator Operating at Room Temperature

Evgeniy Makagon; Ellen Wachtel; Lothar Houben; Sidney R. Cohen; Yuanyuan Li; Junying Li; Anatoly I. Frenkel; Igor Lubomirsky

doi:10.1002/adfm.202006712

All-Solid-State Electro-Chemo-Mechanical Actuator Operating at Room Temperature

Evgeniy Makagon, Ellen Wachtel, Lothar Houben, Sidney R. Cohen, Yuanyuan Li, Junying Li, Anatoly I. Frenkel, Igor Lubomirsky^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

Dimensional change in a solid due to electrochemically driven compositional change is termed electro-chemo-mechanical (ECM) coupling. This effect causes mechanical instability in Li-ion batteries and solid oxide fuel cells. Nevertheless, it can generate considerable force and deformation, making it attractive for mechanical actuation. Here a Si-compatible ECM actuator in the form of a 2 mm diameter membrane is demonstrated. Actuation results from oxygen ion transfer between two 0.1 µm thick Ti oxide\Ce0.8Gd0.2O1.9 nanocomposite layers separated by a 1.5 µm thick Ce0.8Gd0.2O1.9 solid electrolyte. The chemical reaction responsible for stress generation is electrochemical oxidation/reduction in the composites. Under ambient conditions, application of 5 V DC produces actuator response within seconds, generating vertical displacement of several µm with calculated stress ≈3.5 MPa. The membrane actuator preserves its final mechanical state for more than 1 h following voltage removal. These characteristics uniquely suit ECM actuators for room temperature applications in Si-integrated microelectromechanical systems.

Original language	English
Article number	2006712
Number of pages	8
Journal	Advanced Functional Materials
Volume	31
Issue number	3
Early online date	7 Oct 2020
DOIs	https://doi.org/10.1002/adfm.202006712
Publication status	Published - 18 Jan 2021

Funding

This work was supported in part by the BioWings project, which has received funding from the European Union’s Horizon 2020 under the Future and Emerging Technologies (FET) program with grant agreement No. 801267. I.L. and A.I.F. acknowledge the NSF-BSF program grant 2018717. A.I.F., Y.L., and J.L. acknowledge support by NSF Grant number DMR-1911592. This research used beamline 7-BM (QAS) of the National Synchrotron Light Source II, a U.S. DOE Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory (BNL) under Contract No. DE-SC0012704. IL and E.M. acknowledge Mrs. Katya Rechav for TEM lamellar sample preparation and Mr. Ilya Makagon for graphical design of Figure 1. This research is made possible in part by the historic generosity of the Harold Perlman Family.

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

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il_AdvancedFunctionalMaterials_AllSolidState_Support_Final2020.pdfOther version, 1.4 MBLicence: Other
il_SdvancedFunctionalMaterials_AllSolidState_AM2020.pdfAccepted author manuscript, 1.16 MBLicence: Other

Cite this

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title = "All-Solid-State Electro-Chemo-Mechanical Actuator Operating at Room Temperature",

abstract = "Dimensional change in a solid due to electrochemically driven compositional change is termed electro-chemo-mechanical (ECM) coupling. This effect causes mechanical instability in Li-ion batteries and solid oxide fuel cells. Nevertheless, it can generate considerable force and deformation, making it attractive for mechanical actuation. Here a Si-compatible ECM actuator in the form of a 2 mm diameter membrane is demonstrated. Actuation results from oxygen ion transfer between two 0.1 µm thick Ti oxide\Ce0.8Gd0.2O1.9 nanocomposite layers separated by a 1.5 µm thick Ce0.8Gd0.2O1.9 solid electrolyte. The chemical reaction responsible for stress generation is electrochemical oxidation/reduction in the composites. Under ambient conditions, application of 5 V DC produces actuator response within seconds, generating vertical displacement of several µm with calculated stress ≈3.5 MPa. The membrane actuator preserves its final mechanical state for more than 1 h following voltage removal. These characteristics uniquely suit ECM actuators for room temperature applications in Si-integrated microelectromechanical systems.",

author = "Evgeniy Makagon and Ellen Wachtel and Lothar Houben and Cohen, {Sidney R.} and Yuanyuan Li and Junying Li and Frenkel, {Anatoly I.} and Igor Lubomirsky",

year = "2021",

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AU - Makagon, Evgeniy

AU - Wachtel, Ellen

AU - Houben, Lothar

AU - Cohen, Sidney R.

AU - Li, Yuanyuan

AU - Li, Junying

AU - Frenkel, Anatoly I.

AU - Lubomirsky, Igor

PY - 2021/1/18

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N2 - Dimensional change in a solid due to electrochemically driven compositional change is termed electro-chemo-mechanical (ECM) coupling. This effect causes mechanical instability in Li-ion batteries and solid oxide fuel cells. Nevertheless, it can generate considerable force and deformation, making it attractive for mechanical actuation. Here a Si-compatible ECM actuator in the form of a 2 mm diameter membrane is demonstrated. Actuation results from oxygen ion transfer between two 0.1 µm thick Ti oxide\Ce0.8Gd0.2O1.9 nanocomposite layers separated by a 1.5 µm thick Ce0.8Gd0.2O1.9 solid electrolyte. The chemical reaction responsible for stress generation is electrochemical oxidation/reduction in the composites. Under ambient conditions, application of 5 V DC produces actuator response within seconds, generating vertical displacement of several µm with calculated stress ≈3.5 MPa. The membrane actuator preserves its final mechanical state for more than 1 h following voltage removal. These characteristics uniquely suit ECM actuators for room temperature applications in Si-integrated microelectromechanical systems.

AB - Dimensional change in a solid due to electrochemically driven compositional change is termed electro-chemo-mechanical (ECM) coupling. This effect causes mechanical instability in Li-ion batteries and solid oxide fuel cells. Nevertheless, it can generate considerable force and deformation, making it attractive for mechanical actuation. Here a Si-compatible ECM actuator in the form of a 2 mm diameter membrane is demonstrated. Actuation results from oxygen ion transfer between two 0.1 µm thick Ti oxide\Ce0.8Gd0.2O1.9 nanocomposite layers separated by a 1.5 µm thick Ce0.8Gd0.2O1.9 solid electrolyte. The chemical reaction responsible for stress generation is electrochemical oxidation/reduction in the composites. Under ambient conditions, application of 5 V DC produces actuator response within seconds, generating vertical displacement of several µm with calculated stress ≈3.5 MPa. The membrane actuator preserves its final mechanical state for more than 1 h following voltage removal. These characteristics uniquely suit ECM actuators for room temperature applications in Si-integrated microelectromechanical systems.

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All-Solid-State Electro-Chemo-Mechanical Actuator Operating at Room Temperature

Abstract

Funding

All Science Journal Classification (ASJC) codes

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