Relationship between wetting and electrical contact properties of pure metals and alloys on semiconducting barium titanate ceramics

D. P. Cann; J. P. Maria; C. A. Randall

doi:10.1023/A:1011817128242

Relationship between wetting and electrical contact properties of pure metals and alloys on semiconducting barium titanate ceramics

D. P. Cann, J. P. Maria, C. A. Randall

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34 Scopus citations

Abstract

In this work, the relationship between the thermodynamic properties of metal-ceramic interfaces and their electrical contact properties was explored for semiconducting BaTiO₃ ceramics. The role of chemical reactivity at the interface was quantified through sessile drop measurements of the work of adhesion (W_ad). The interfacial properties were characterized with impedance spectroscopy to quantify contact resistance and capacitance. It was observed that interfaces with a strong chemical interaction between the metal and the oxygen anion in the ceramic showed large W_ad and correspondingly low contact resistances. It is believed that an oxygen depleted region near the surface of the BaTiO₃ was formed as a result of the strong metal-oxygen interactions and led to a large W_ad and an Ohmic contact.

Original language	English (US)
Pages (from-to)	4969-4976
Number of pages	8
Journal	Journal of Materials Science
Volume	36
Issue number	20
DOIs	https://doi.org/10.1023/A:1011817128242
State	Published - Oct 15 2001

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Mechanical Engineering

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@article{c8579bc8a2af4f2b87ffc670cb56df3a,

title = "Relationship between wetting and electrical contact properties of pure metals and alloys on semiconducting barium titanate ceramics",

abstract = "In this work, the relationship between the thermodynamic properties of metal-ceramic interfaces and their electrical contact properties was explored for semiconducting BaTiO3 ceramics. The role of chemical reactivity at the interface was quantified through sessile drop measurements of the work of adhesion (Wad). The interfacial properties were characterized with impedance spectroscopy to quantify contact resistance and capacitance. It was observed that interfaces with a strong chemical interaction between the metal and the oxygen anion in the ceramic showed large Wad and correspondingly low contact resistances. It is believed that an oxygen depleted region near the surface of the BaTiO3 was formed as a result of the strong metal-oxygen interactions and led to a large Wad and an Ohmic contact.",

author = "Cann, {D. P.} and Maria, {J. P.} and Randall, {C. A.}",

note = "Funding Information: The authors would like to thank the Center for Dielectric Studies and the Educational Foundation of the International Microelectronics and Packaging Society for their support of this project. The authors would also like to thank Drs. Dick Horsey and Dave Sorge of Keystone Thermometrics for their helpful discussions, Mr. Mark Angelone of the Materials Characterization Laboratory at Penn State University for his work on the Electron Microprobe, Mr. Atsushi Hitomi and Dr. Shigeki Sato of TDK Corporation for their assistance, and Mr. William Drawl for his extensive vacuum expertise.",

year = "2001",

month = oct,

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doi = "10.1023/A:1011817128242",

language = "English (US)",

volume = "36",

pages = "4969--4976",

journal = "Journal of Materials Science",

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T1 - Relationship between wetting and electrical contact properties of pure metals and alloys on semiconducting barium titanate ceramics

AU - Cann, D. P.

AU - Maria, J. P.

AU - Randall, C. A.

N1 - Funding Information: The authors would like to thank the Center for Dielectric Studies and the Educational Foundation of the International Microelectronics and Packaging Society for their support of this project. The authors would also like to thank Drs. Dick Horsey and Dave Sorge of Keystone Thermometrics for their helpful discussions, Mr. Mark Angelone of the Materials Characterization Laboratory at Penn State University for his work on the Electron Microprobe, Mr. Atsushi Hitomi and Dr. Shigeki Sato of TDK Corporation for their assistance, and Mr. William Drawl for his extensive vacuum expertise.

PY - 2001/10/15

Y1 - 2001/10/15

N2 - In this work, the relationship between the thermodynamic properties of metal-ceramic interfaces and their electrical contact properties was explored for semiconducting BaTiO3 ceramics. The role of chemical reactivity at the interface was quantified through sessile drop measurements of the work of adhesion (Wad). The interfacial properties were characterized with impedance spectroscopy to quantify contact resistance and capacitance. It was observed that interfaces with a strong chemical interaction between the metal and the oxygen anion in the ceramic showed large Wad and correspondingly low contact resistances. It is believed that an oxygen depleted region near the surface of the BaTiO3 was formed as a result of the strong metal-oxygen interactions and led to a large Wad and an Ohmic contact.

AB - In this work, the relationship between the thermodynamic properties of metal-ceramic interfaces and their electrical contact properties was explored for semiconducting BaTiO3 ceramics. The role of chemical reactivity at the interface was quantified through sessile drop measurements of the work of adhesion (Wad). The interfacial properties were characterized with impedance spectroscopy to quantify contact resistance and capacitance. It was observed that interfaces with a strong chemical interaction between the metal and the oxygen anion in the ceramic showed large Wad and correspondingly low contact resistances. It is believed that an oxygen depleted region near the surface of the BaTiO3 was formed as a result of the strong metal-oxygen interactions and led to a large Wad and an Ohmic contact.

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DO - 10.1023/A:1011817128242

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EP - 4976

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 20

ER -

Relationship between wetting and electrical contact properties of pure metals and alloys on semiconducting barium titanate ceramics

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