Nanoporous Piezo- and Ferroelectric Thin Films

被引：32

作者：

Ferreira, Paula ^{[1
]}

Hou, Ru Z. ^{[1
]}

Wu, Aiying ^{[1
]}

Willinger, Marc-Georg ^{[1
]}

Vilarinho, Paula M. ^{[1
]}

Mosa, Jadra ^{[2
]}

Laberty-Robert, Christel ^{[2
]}

Boissiere, Cedric ^{[2
]}

Grosso, David ^{[2
]}

Sanchez, Clement ^{[2
]}

机构：

[1] Univ Aveiro, CICECO, Dept Engn Ceram & Vidro, P-3810193 Aveiro, Portugal

[2] UPMC Univ Paris 06, Lab Chim Mat Condensee Paris, Coll France, CNRS,UMR 7574, F-75231 Paris, France

来源：

LANGMUIR | 2012年 / 28卷 / 05期

关键词：

CERAMICS; POROSITY;

D O I：

10.1021/la204168w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanoporous barium titanate and lead titanate thin films (similar to 100 nm calculated from ellipsometric data) are prepared starting from sol gel solutions modified with a commercially available block-copolymer and evaporation-induced self-assembly methodology. The tuning of the thermal treatment followed by in situ ellipsometry allows the decomposition of the organic components and of the structuring agent leading to the formation of porous tetragonal crystalline perovskite structures as observed by XRD, HRTEM, SEM, and ellipsoporosimetry. Both nanoporous barium titanate and lead titanate thin films present local piezoelectric and ferroelectric behavior measured by piezoresponse force microscopy (PFM), being promising platforms for the preparation of the generation of new multifunctional systems.

引用

页码：2944 / 2949

页数：6

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