Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5477279 | Energy | 2016 | 7 Pages |
Abstract
We report the advantages of atomic layer deposition (ALD) for the fabrication of yttria-stabilized zirconia (YSZ) electrolyte. The reactivity and stability of anodic aluminum oxide (AAO)-based thin-film solid oxide fuel cells (SOFCs) are improved by applying ALD YSZ electrolyte. The fuel cell fabricated by ALD shows a peak power density of 154.6 mW cmâ2 at 450 °C, whereas the fuel cell fabricated by sputtering demonstrates a peak power density of 66.2 mW cmâ2. The amorphous and nanogranular microstructure of the ALD YSZ film is ascribed for a significant improvement in the cathodic reactivity of the AAO-based thin-film fuel cells. Moreover, the smooth and uniform surface of the ALD YSZ electrolytes mitigates the agglomeration of the Pt cathode layer, and thus the thermal stability of the thin-film fuel cell is remarkably improved at 450 °C.
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Physical Sciences and Engineering
Energy
Energy (General)
Authors
Joonho Park, Yeageun Lee, Ikwhang Chang, Gu Young Cho, Sanghoon Ji, Wonyoung Lee, Suk Won Cha,