Fluoroethylenepropylene ferroelectrets with patterned microstructure and high, thermally stable piezoelectricity
Fluoroethylenepropylene ferroelectrets with patterned microstructure and high, thermally stable piezoelectricity
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具有图案化微观结构和高热稳定压电性的氟乙烯丙烯铁电驻极体
DOI：
10.1007/s00339-012-6840-7
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发表时间：
2012-03
期刊：
影响因子：
--
通讯作者：
Lou, K.
中科院分区：
文献类型：
--
作者：
Hillenbr;, J.;Sessler, G. M.;Haberzettl, S.;Lou, K.
以聚全氟乙丙烯（FEP）薄膜为原料，通过模板构图、熔融键合和接触充电等工艺制备了FEP铁电驻极体薄膜。层状铁电驻极体薄膜的空隙结构具有一致性和规则性，层间结合良好。对于由两个12.5 μm厚的FEP层和一个60 μm高的典型空隙组成的膜，在内部空隙中建立“宏偶极子”所需的临界电压约为800 V。在室温下，由典型厚度为85 μm的所制造的膜的介电共振谱确定的厚度方向上的杨氏模量约为0.21 MPa。在1500 V峰值电压下接触充电的样品的初始准静态压电系数在1000-3000 pC/N范围内。由此，通过适当的退火处理，可以获得具有分别高达1000 pC/N和400 pC/N的高准静态和动态（高达20 kHz）d33系数的铁电驻极体，其在120°C下是热稳定的。与以前的结果相比，这是一个显著的改进。
Layered fluoroethylenepropylene (FEP) ferroelectret films were prepared from sheets of FEP films by template-patterning followed by a fusion-bonding process and contact charging. The layered ferroelectret films show consistency and regularity in their void structures and good bonding of the layers. For films composed of two 12.5 μm thick FEP layers and a typical void of 60 μm height, the critical voltage necessary for the built-up of the “macro-dipoles” in the inner voids is approximately 800 V. At room temperature, Young’s modulus in the thickness direction, determined from dielectric resonance spectra of the fabricated films with a typical thickness of 85 μm, is about 0.21 MPa. Initial quasistatic piezoelectricd33coefficients of samples contact charged at a peak voltage of 1500 V are in the range of 1000–3000 pC/N. From these, ferroelectrets with high quasistatic and dynamic (up to 20 kHz)d33coefficients of up to 1000 pC/N and 400 pC/N, respectively, which are thermally stable at 120°C, can be obtained by proper annealing treatment. This constitutes a significant improvement compared to previous results.
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DOI：
10.1109/tdei.2006.1714949
发表时间：
2006
影响因子：
3.1
作者：
N. Bowler;I. J. Youngs;K. P. Lymer;S. Hussain
通讯作者：
N. Bowler;I. J. Youngs;K. P. Lymer;S. Hussain
DOI：
10.1109/tdei.2006.247820
发表时间：
2006-10
影响因子：
3.1
作者：
E. Saarimaki;M. Paajanen;A. Savijarvi;H. Minkkinen;M. Wegener;O. Voronina;R. Schulze;W. Wirges
通讯作者：
E. Saarimaki;M. Paajanen;A. Savijarvi;H. Minkkinen;M. Wegener;O. Voronina;R. Schulze;W. Wirges
DOI：
10.1109/tdei.2003.1237333
发表时间：
2003-10-01
影响因子：
3.1
作者：
Mellinger, A
通讯作者：
Mellinger, A
影响因子：
19
作者：
Wirges, Werner;Wegener, Michael;Gerhard-Multhaupt, Reimund
通讯作者：
Gerhard-Multhaupt, Reimund
影响因子：
4
作者：
M. Dansachmuller;I. Minev;P. Bartu;I. Graz;N. Arnold;S. Bauer
通讯作者：
M. Dansachmuller;I. Minev;P. Bartu;I. Graz;N. Arnold;S. Bauer