Ultraviolet irradiation induced polarization restoration in electrically fatigued ferroelectric polymer films
- Department of Materials Science, Fudan University, Shanghai 200433 (China)
- School of Microelectronics, Fudan University, Shanghai 200433 (China)
- Institute of Acoustics, Tongji University, Shanghai 200092 (China)
Polarization fatigue is a kind of phenomenon usually observed in most ferroelectric films, which severely degrades the electrical performance of ferroelectric devices. How to restore those degraded polarization as well as how to improve fatigue endurance has been attracting much attention. Here, we report the observation of ultraviolet (UV) irradiation induced polarization restoration in ferroelectric polymer films. Large numbers of experiments indicate that the simultaneous application of UV irradiation and DC bias voltage will result in polarization restoration, which is dependent on both electrical polarity of DC bias and the UV intensity. Repeated fatigue and restoration measurements are also conducted. Based on fatigue mechanism in ferroelectric polymer films, UV-induced restoration is discussed.
- OSTI ID:
- 22102309
- Journal Information:
- Journal of Applied Physics, Vol. 113, Issue 11; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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