Flexible active-matrix cells with selectively poled bifunctional polymer-ceramic nanocomposite for pressure and temperature sensing skin

被引：169

作者：

Graz, Ingrid ^{[1
]}

Krause, Markus ^{[2
]}

Bauer-Gogonea, Simona ^{[2
]}

Bauer, Siegfried ^{[2
]}

Lacour, Stephanie P. ^{[1
]}

Ploss, Bernd ^{[3
]}

Zirkl, Martin ^{[4
]}

Stadlober, Barbara ^{[4
]}

Wagner, Sigurd ^{[5
]}

机构：

[1] Univ Cambridge, Dept Engn, Nanosci Ctr, Cambridge CB3 0FF, England

[2] Johannes Kepler Univ Linz, Dept Soft Matter Phys, A-4040 Linz, Austria

[3] Univ Appl Sci, Dept SciTec, D-07745 Jena, Germany

[4] Joanneum Res, Inst Nanostruct Mat & Photon, A-8160 Weiz, Austria

[5] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 106卷 / 03期

关键词：

dielectric polarisation; ferroelectric materials; filled polymers; flexible electronics; lead compounds; nanocomposites; nanoparticles; piezoceramics; pressure sensors; pyroelectricity; temperature sensors; thin film transistors; THIN-FILM TRANSISTORS; LARGE-AREA; SENSORS;

D O I：

10.1063/1.3191677

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A monolithically integrated bifunctional frontplane is introduced to large area electronics. The bifunctional frontplane element is based on a composite foil of piezoelectric ceramic lead titanate nanoparticles embedded in a ferroelectric poly(vinylidene fluoride trifluoroethylene) polymer matrix. Bifunctionality to pressure and temperature changes is achieved by a sequential, area selective two-step poling process, where the polarization directions in the nanoparticles and the ferroelectric polymer are adjusted independently. Thereby, sensor elements that are only piezoelectric or only pyroelectric are achieved. The frontplane foil is overlaid on a thin-film transistor backplane. Our work constitutes a step toward multifunctional frontplanes for large area electronic surfaces.

引用

页数：5

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