Out-of-Plane Ionic Conductivity Measurement Configuration for High-Throughput Experiments
Abstract
An approach for measuring conductivity of thin-film electrolytes in an out-of-plane configuration, amenable to high-throughput experimentation, is presented. A comprehensive analysis of the geometric requirements for success is performed. Using samaria-doped ceria (Ce_(0.8)Sm_(0.2)O_(1.9), SDC) excellent agreement between bulk samples and thin films with continuous and patterned electrodes, 100–500 μm in diameter, is demonstrated. Films were deposited on conductive Nb-doped SrTiO_3, and conductivity was measured by AC impedance spectroscopy over the temperature range from ∼200 to ∼500 °C. The patterned electrode geometry, which encompassed an array of microdot metal electrodes for making top contact, enabled measurements at hundreds of positions on the film, implying the potential for measuring hundreds of composition in a single library.
Additional Information
© 2018 American Chemical Society. Received: March 10, 2018; Revised: May 23, 2018; Published: May 24, 2018. This work was supported by the US National Science Foundation, DMR-1505103, and by the US Department of Energy, through ARPA-e contract DE-AR0000707, via subcontract from Citrine Informatics. Selected facilities used were supported by the National Science Foundation via Northwestern University's MRSEC, DMR-1121262. Facilities utilized include Northwestern University's Pulsed Laser Deposition facility for film growth, NUFab for microfabrication, and NUANCE for electron microscopy. The authors gratefully acknowledge the assistance provided by Weizi Yuan and Xin Xu in using various experimental procedures. The authors declare no competing financial interest.Additional details
- Eprint ID
- 87181
- DOI
- 10.1021/acscombsci.8b00037
- Resolver ID
- CaltechAUTHORS:20180618-081304949
- DMR-1505103
- NSF
- DE-AR0000707
- Department of Energy (DOE)
- DMR-1121262
- NSF
- Created
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2018-06-18Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field