Fabrication of Bi2O3 thin film by thermal-enhanced electroplating

Chaur Chi Huang, Teng Yi Wen, Kuan-Zong Fung

Research output: Chapter in Book/Report/Conference proceedingConference contribution


High-temperature fluorite structure Bi2O3 is a well-known solid electrolyte due to its high oxygen ion conductivity. The stabilization of cubic Bi2O3 may be enhanced by adding rare earth oxide. It was thought that phase transformation was caused by the presence of oxygen vacancies. In this study, Bi2O3 thin film was prepared by oxidation on the electroplated Bi. The effect of applied voltage on crystallization of metallic Bi thin film was investigated. The oxidation reaction of Bi with various crystalline orientations is discussed. Two preferred orientations, (102) and (202), appeared in XRD. After oxidation, β-Bi2O3 and α-Bi2O3 appeared due to the specific atomic configurations of (102) and (202). The microstructure observed by SEM showed microcracks due to lattice expansion from phase transformation. The volume changes from rhombohedral Bi to β-Bi 2O3 and α-Bi2O3 were estimated to be 16.73 and 19.14%.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells IX, SOFC IX
Subtitle of host publicationMaterials - Proceedings of the International Symposium
EditorsS.C. Singhal, J. Mizusaki
Number of pages5
VolumePV 2005-07
Publication statusPublished - 2005
Event9th International Symposium on Solid Oxide Fuel Cells, SOFC IX - Quebec, Canada
Duration: 2005 May 152005 May 20


Other9th International Symposium on Solid Oxide Fuel Cells, SOFC IX

All Science Journal Classification (ASJC) codes

  • General Engineering


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