Polarization distribution in ceramic-polymer nanocomposites

被引:7
作者
Bloss, P
DeReggi, AS
Gläsel, HJ
Hartmann, E
Hirsch, D
Schäfer, H
机构
[1] Inst Surface Modificat, D-04318 Leipzig, Germany
[2] Natl Inst Stand & Technol, Div Polymers, Gaithersburg, MD 20899 USA
[3] Univ Nijmegen, NSR Ctr, HF NMR Facil, NL-6525 Nijmegen, Netherlands
[4] Leipzig Gemeinnut Gesell mbH, Kunststoff Zentrum, D-04229 Leipzig, Germany
关键词
D O I
10.1063/1.371115
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report pyroelectric responsivity versus depth profiles in nanocomposites of powdered barium titanate and tripropylene glycol diacrylate obtained by using the thermal pulse (TP) method. The ceramic nanopowder (mean particle size 270 nm) was prepared by combined solid-state polymerization and pyrolysis of a metallo-organic precursor. Films of powder/monomer dispersion (thickness similar to 30 mu m) were cured by irradiation with an electron beam (energy 140 keV, dose 80 kGy). The observation of a TP response after electron beam curing (EBC) indicates the appearance of a poling electric field as an effect of the EBC. The polarization depth profiles were studied for different filler contents. The composites show potential promise for piezo and pyroelectric sensors applications and for charge storage in microelectronics. (C) 1999 American Institute of Physics. [S0021-8979(99)03417-9].
引用
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页码:2712 / 2718
页数:7
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