Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)
- Volume 4 Issue 4 Serial No. 13
- /
- Pages.1-4
- /
- 2005
- /
- 1738-2270(pISSN)
Effect of Stress on Current-Voltage Characteristics of ZnO Based Ceramics
- Jung Ju-Yong (Dept. Materials Engineering, Korea University of Technology and Education) ;
- Kim Yeong-Cheol (Dept. Materials Engineering, Korea University of Technology and Education) ;
- Seo Hwa-Il (School of Information Technology, Korea University of Technology and Education) ;
- Chung Dong-Teak (School of Mechatronics Korea University of Technology and Education) ;
- Kim Young-Jung (Dept. Materials Systems Engineering, Sun-Moon University) ;
- Min Joon-Won (KATECH Poongsei Youngsungri 74 Chungnam)
- Published : 2005.12.01
Abstract
The chemical composition and uniaxial compressive stress are varied to observe their effect on the current-voltage characteristics of ZnO based ceramics. The variation of chemical composition produces two kinds of ceramics showing ohmic and nonohmic current-voltage characteristics. The current at a fixed voltage increased with the increase of the compressive stress for both ohmic and nonohmic ceramics. Ceramics showing nonohmic behavior exhibit better reversible return of current-voltage curve when the applied compressive stress is removed from the ceramics than those showing ohmic behavior do. We found an appropriate chemical composition showing linear relation between current and stress at a fixed voltage. The ceramic materials with an appropriate chemical composition can be used as a potential sensing material in pressure sensors.