红外与毫米波学报, 2016, 35 (2): 143, 网络出版: 2016-05-11
界面极化层引起P(VDF-TrFE)电容器的电容-电压的不对称
Asymmetric capacitance-voltage curves induced by pinned interface dipoles in poly(vinylidene fluoride/trifluoroethylene) capacitor
摘要
通过研究Au/P(VDF-TrFE)/Al 电容器的变温(200 K 到310 K)电容-电压曲线,室温下观察到两个极化方向下的电容不对称,这个现象可以应用于非挥发性存储器.电容不对称程度随着温度的降低而变小,当温度低于230 K,电容不对称现象消失.P(VDF-TrFE)与Al电极之间的界面极化层可以解释观察到的电容不对称现象.
Abstract
The capacitance-voltage (C-V) curves of Au/P(VDF-TrFE)/Al capacitor were investigated from 200 K to 310 K. An asymmetry of capacitance value at 0 bias voltage under two polarization orientations was observed at room temperature region, which can be applied in the field of non-volatile memory. The capacitance asymmetry decays with reduced temperature and disappears as the temperature is below 230 K. The phenomena is attributed to a pinned dipole layer between P(VDF-TrFE) films and Al metal electrode.
刘伯路, 田博博, 赵晓林, 王建禄, 孙硕, 沈宏, 孙璟兰, 孟祥建, 褚君浩. 界面极化层引起P(VDF-TrFE)电容器的电容-电压的不对称[J]. 红外与毫米波学报, 2016, 35(2): 143. LIU Bo-Lu, TIAN Bo-Bo, ZHAO Xiao-Lin, WANG Jian-Lu, SUN Shuo, SHEN Hong, SUN Jing-Lan, MENG Xiang-Jian, CHU Jun-Hao. Asymmetric capacitance-voltage curves induced by pinned interface dipoles in poly(vinylidene fluoride/trifluoroethylene) capacitor[J]. Journal of Infrared and Millimeter Waves, 2016, 35(2): 143.
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