Low-temperature performance of yttria-stabilized zirconia prepared by atomic layer deposition

Dong Young Jang, Ho Keun Kim, Jun Woo Kim, Kiho Bae, Meike V F Schlupp, Suk Won Park, Michel Prestat, Joon Hyung Shim

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We report on the performance of thin-film yttria-stabilized zirconia (YSZ) synthesized by atomic layer deposition (ALD) at temperatures of 50-525 °C. Electrochemical impedance spectroscopy (EIS) was used for conductivity measurements. Relatively high conductivity values were observed in the low-temperature region when compared to reference values of YSZ synthesized by other methods. To investigate the conduction mechanism, various experimental variables were modified during the electrical measurements, including the ratio of yttria to zirconia in the ALD YSZ films and the atmospheric conditions. To relate the electrical properties to the structural characteristics, the crystallinity and microstructure were investigated using transmission electron microscopy (TEM) and X-ray diffraction (XRD). Finally, the suitability of an ALD YSZ membrane as the electrolyte of micro solid oxide fuel cells was evaluated. An open circuit voltage of almost 1 V and decent power output were successfully measured below 100 °C.

Original languageEnglish
Pages (from-to)611-618
Number of pages8
JournalJournal of Power Sources
Volume274
DOIs
Publication statusPublished - 2015 Jan 15

Fingerprint

Atomic layer deposition
Yttria stabilized zirconia
atomic layer epitaxy
yttria-stabilized zirconia
conductivity
Temperature
Yttrium oxide
Open circuit voltage
meteorology
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
open circuit voltage
Electrochemical impedance spectroscopy
zirconium oxides
Zirconia
electrical measurement
Electrolytes
crystallinity
Electric properties
electrical properties

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

Cite this

Low-temperature performance of yttria-stabilized zirconia prepared by atomic layer deposition. / Jang, Dong Young; Kim, Ho Keun; Kim, Jun Woo; Bae, Kiho; Schlupp, Meike V F; Park, Suk Won; Prestat, Michel; Shim, Joon Hyung.

In: Journal of Power Sources, Vol. 274, 15.01.2015, p. 611-618.

Research output: Contribution to journalArticle

Jang, Dong Young ; Kim, Ho Keun ; Kim, Jun Woo ; Bae, Kiho ; Schlupp, Meike V F ; Park, Suk Won ; Prestat, Michel ; Shim, Joon Hyung. / Low-temperature performance of yttria-stabilized zirconia prepared by atomic layer deposition. In: Journal of Power Sources. 2015 ; Vol. 274. pp. 611-618.
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AU - Schlupp, Meike V F

AU - Park, Suk Won

AU - Prestat, Michel

AU - Shim, Joon Hyung

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AB - We report on the performance of thin-film yttria-stabilized zirconia (YSZ) synthesized by atomic layer deposition (ALD) at temperatures of 50-525 °C. Electrochemical impedance spectroscopy (EIS) was used for conductivity measurements. Relatively high conductivity values were observed in the low-temperature region when compared to reference values of YSZ synthesized by other methods. To investigate the conduction mechanism, various experimental variables were modified during the electrical measurements, including the ratio of yttria to zirconia in the ALD YSZ films and the atmospheric conditions. To relate the electrical properties to the structural characteristics, the crystallinity and microstructure were investigated using transmission electron microscopy (TEM) and X-ray diffraction (XRD). Finally, the suitability of an ALD YSZ membrane as the electrolyte of micro solid oxide fuel cells was evaluated. An open circuit voltage of almost 1 V and decent power output were successfully measured below 100 °C.

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