Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1525954 | Materials Chemistry and Physics | 2009 | 5 Pages |
Abstract
The electrical properties of (Li, Al)-doped NiO ceramics (i.e., Li0.05Al0.04Ni0.91O, Li0.05Al0.06Ni0.89O, and Li0.05Al0.10Ni0.85O) synthesized by a simple thermal decomposition route were investigated. It was observed that the grain size of the ceramics was affected by the Al content. Impedance analysis confirmed that these ceramics had an electrically heterogeneous structure that was responsible for the giant dielectric response. Interestingly, the Al-dopant had not only the strong effects on the electrical transport character at grain boundaries, but also on the conductivity in the grain interiors.
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Suwat Tangwancharoen, Prasit Thongbai, Teerapon Yamwong, Santi Maensiri,