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

Abstract

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
Pages1137-1141
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

Other

Other9th International Symposium on Solid Oxide Fuel Cells, SOFC IX
CountryCanada
CityQuebec
Period05-05-1505-05-20

Fingerprint

Electroplating
Fabrication
Crystal orientation
Thin films
Oxidation
Phase transitions
Fluorspar
Solid electrolytes
Microcracks
Oxygen vacancies
Rare earths
Stabilization
Crystallization
Crystalline materials
Microstructure
Scanning electron microscopy
Oxides
Oxygen
Ions
Electric potential

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Huang, C. C., Wen, T. Y., & Fung, K-Z. (2005). Fabrication of Bi2O3 thin film by thermal-enhanced electroplating. In S. C. Singhal, & J. Mizusaki (Eds.), Solid Oxide Fuel Cells IX, SOFC IX: Materials - Proceedings of the International Symposium (Vol. PV 2005-07, pp. 1137-1141)
Huang, Chaur Chi ; Wen, Teng Yi ; Fung, Kuan-Zong. / Fabrication of Bi2O3 thin film by thermal-enhanced electroplating. Solid Oxide Fuel Cells IX, SOFC IX: Materials - Proceedings of the International Symposium. editor / S.C. Singhal ; J. Mizusaki. Vol. PV 2005-07 2005. pp. 1137-1141
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abstract = "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{\%}.",
author = "Huang, {Chaur Chi} and Wen, {Teng Yi} and Kuan-Zong Fung",
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Huang, CC, Wen, TY & Fung, K-Z 2005, Fabrication of Bi2O3 thin film by thermal-enhanced electroplating. in SC Singhal & J Mizusaki (eds), Solid Oxide Fuel Cells IX, SOFC IX: Materials - Proceedings of the International Symposium. vol. PV 2005-07, pp. 1137-1141, 9th International Symposium on Solid Oxide Fuel Cells, SOFC IX, Quebec, Canada, 05-05-15.

Fabrication of Bi2O3 thin film by thermal-enhanced electroplating. / Huang, Chaur Chi; Wen, Teng Yi; Fung, Kuan-Zong.

Solid Oxide Fuel Cells IX, SOFC IX: Materials - Proceedings of the International Symposium. ed. / S.C. Singhal; J. Mizusaki. Vol. PV 2005-07 2005. p. 1137-1141.

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

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AU - Wen, Teng Yi

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N2 - 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%.

AB - 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%.

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Huang CC, Wen TY, Fung K-Z. Fabrication of Bi2O3 thin film by thermal-enhanced electroplating. In Singhal SC, Mizusaki J, editors, Solid Oxide Fuel Cells IX, SOFC IX: Materials - Proceedings of the International Symposium. Vol. PV 2005-07. 2005. p. 1137-1141