The Influence of Ultraviolet Irradiation on Polarization Fatigue in Ferroelectric Polymer Films
The Influence of Ultraviolet Irradiation on Polarization Fatigue in Ferroelectric Polymer Films
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DOI：
10.1109/led.2011.2172912
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发表时间：
2012
影响因子：
4.9
通讯作者：
Shao-Song Fu;Hao Yu;Xiao-Ya Luo;Yu Jiang;Guodong Zhu
中科院分区：
文献类型：
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作者：
Shao-Song Fu;Hao Yu;Xiao-Ya Luo;Yu Jiang;Guodong Zhu
在这封信中，我们报告的紫外线（UV）照射对铁电聚合物的电疲劳的影响。实验表明，铁电聚合物薄膜暴露于紫外线照射显示下降的疲劳耐久性。然而，同时施加UV光和偏置电压（Vbias）可以部分地恢复疲劳膜中的电极化。在我们目前的工作中，UV（365 nm）和Vbias（-51 V）的组合导致反射偏振在1200 s内恢复到其原始值的85.3%。还报道了Vbias对极化恢复的影响。紫外线效应的基础上解释的电荷对铁电疲劳的影响。
In this letter, we report the influence of ultraviolet (UV) irradiation on electrical fatigue in ferroelectric polymers. Experiments indicate that ferroelectric polymer films exposed to UV irradiation show degraded fatigue endurance. However, simultaneous application of UV light and bias voltage (Vbias) can partially recover the electrical polarization in fatigued films. In our present work, a combination of UV (365 nm) and Vbias ( -51 V) has resulted in the restoration of remanent polarization up to 85.3% of its original value in 1200 s. The influence of Vbias on polarization restoration is also reported. UV effects are explained based on the understanding of charge influence on ferroelectric fatigue.