Abstract
The contact resistance of strontium-doped lanthanum manganite (LSM) contact pairs is investigated by polarisation analysis at different temperatures and atmospheres.
The ceramic contacts have a high contact resistance, and strongly nonlinear current–voltage behaviour is observed at low temperatures. The nonlinear behaviour is ascribed to the presence of energy barriers at the contact interface.
Generally, point contacts showed a more linear behaviour than plane contact interfaces.
The ceramic contacts have a high contact resistance, and strongly nonlinear current–voltage behaviour is observed at low temperatures. The nonlinear behaviour is ascribed to the presence of energy barriers at the contact interface.
Generally, point contacts showed a more linear behaviour than plane contact interfaces.
Original language | English |
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Journal | Solid State Ionics |
Volume | 176 |
Issue number | 9-10 |
Pages (from-to) | 861-869 |
ISSN | 0167-2738 |
DOIs | |
Publication status | Published - Mar 2005 |
Keywords
- Contact resistance
- Ceramic contact
- LSM
- Nonohmic behaviour
- Potential barrier
- SOFC
- Cathode material
- La1−xSrxMn1+δO3