期刊
MATERIALS LETTERS
卷 64, 期 1, 页码 22-24出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2009.09.059
关键词
Ferroelectric; High energy density; Sol-gel; PLZT; Thin film; Perovskite
资金
- U.S. Department of Energy [DE-AC02-06CH11357]
Thin films of lead lanthanum zirconate titanate (PLZT) were directly deposited on copper substrates by chemical solution deposition and crystallized at temperatures of similar to 650 degrees C under low oxygen partial pressure (pO(2)) to create film-on-foil capacitor sheets. The dielectric properties of the capacitors formed have much improved dielectric properties compared to those reported previously. The key to the enhanced properties is a reduction in the time that the film is exposed to lower pO(2) by employing a direct insertion strategy to crystallize the films together with the solution chemistry employed. Films exhibited well-saturated hysteresis loops with remanent polarization of similar to 20 mu C/cm(2), dielectric constant of > 1100, and dielectric loss of < 0.07. Energy densities of similar to 32 J/cm(3) were obtained at a field of similar to 1.9 MV/cm on a similar to 1 mu m thick film with 250 mu m Pt electrodes. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据