This title appears in the Scientific Report :
2005
Please use the identifier:
http://hdl.handle.net/2128/1088 in citations.
Please use the identifier: http://dx.doi.org/10.1063/1.1864232 in citations.
Enhancement of p-type conductivity in nanocrystalline BaTiO3 Ceramics
Enhancement of p-type conductivity in nanocrystalline BaTiO3 Ceramics
Undoped BaTiO3 ceramic samples with an average grain size of similar to 35 nm were prepared and the electrical properties investigated. The defect structure is dominated by acceptor impurities; therefore, the conductivity of nanocrystalline BaTiO3 is of p-type. Comparing with microcrystalline BaTiO3...
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Personal Name(s): | Guo, X. |
---|---|
Pithan, C. / Ohly, C. / Jia, C.-L. / Dornseiffer, J. / Haegel, F.-H. / Waser, R. | |
Contributing Institute: |
Troposphäre; ICG-II Sedimentäre Systeme; ICG-V Mikrostrukturforschung; IFF-IMF Elektronische Materialien; IFF-IEM |
Published in: | Applied physics letters, 86 (2005) S. 082110 |
Imprint: |
Melville, NY
American Institute of Physics
2005
|
Physical Description: |
082110 |
DOI: |
10.1063/1.1864232 |
Document Type: |
Journal Article |
Research Program: |
Chemie und Dynamik der Geo-Biosphäre Kondensierte Materie |
Series Title: |
Applied Physics Letters
86 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1063/1.1864232 in citations.
Undoped BaTiO3 ceramic samples with an average grain size of similar to 35 nm were prepared and the electrical properties investigated. The defect structure is dominated by acceptor impurities; therefore, the conductivity of nanocrystalline BaTiO3 is of p-type. Comparing with microcrystalline BaTiO3, the conductivity of nanocrystalline BaTiO3 is about 1 to 2 orders of magnitude higher and the activation energy remarkably lower, which is ascribed to a greatly reduced oxidation enthalpy in nanocrystalline BaTiO3 (similar to 0.3 versus similar to 0.92 eV for microcrystalline BaTiO3). (c) 2005 American Institute of Physics. |