Low temperature synthesis of sub-micrometer yttria-doped barium zirconate thin films by modified chemical solution deposition technique

Low temperature synthesis of sub-micrometer yttria-doped barium zirconate thin films by modified chemical solution deposition technique

Yttria-doped barium zirconate (BZY) electrolyte films with submicrometer thickness were prepared using a modified chemical solution deposition (CSD) technique at very low sintering temperature of 800°C without sintering aid. Pure perovskite BZY phase without barium carbonate associated with low calc...

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Bibliographic Details
Main Authors: Biswas, Mridula, Xie, Hanlin, Su, Pei-Chen
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2019
Subjects:
Deposition
Low Temperature
DRNTU::Engineering::Mechanical engineering
Online Access:https://hdl.handle.net/10356/82838
http://hdl.handle.net/10220/48157
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Institution: Nanyang Technological University
Language: English
Description
Summary:Yttria-doped barium zirconate (BZY) electrolyte films with submicrometer thickness were prepared using a modified chemical solution deposition (CSD) technique at very low sintering temperature of 800°C without sintering aid. Pure perovskite BZY phase without barium carbonate associated with low calcination temperature was successfully obtained with no obvious barium (Ba) evaporation to deviate the stoichiometry composition. This cost effective and scalable method for BYZ, as compared to the other reported vacuum-based thin film deposition techniques such as pulsed laser deposition (PLD) or atomic layer deposition (ALD), is potentially applicable in the fabrication of high quality electrolyte for nano-thin film micro solid oxide fuel cells operating at temperature below 500°C.

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