PVDF薄膜的极化及其电性能研究

叶芸; 郭太良; 蒋亚东; 黎威智

doi:10.3969/j.issn.1001-0548.2012.03.027

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PVDF薄膜的极化及其电性能研究

叶芸, 郭太良, 蒋亚东, 黎威智

文章导航 > 电子科技大学学报 > 2012 > 41(3): 463-466

叶芸, 郭太良, 蒋亚东, 黎威智. PVDF薄膜的极化及其电性能研究[J]. 电子科技大学学报, 2012, 41(3): 463-466. doi: 10.3969/j.issn.1001-0548.2012.03.027

引用本文:

叶芸, 郭太良, 蒋亚东, 黎威智. PVDF薄膜的极化及其电性能研究[J]. 电子科技大学学报, 2012, 41(3): 463-466. doi: 10.3969/j.issn.1001-0548.2012.03.027

YE Yun, GUO Tai-liang, JIANG Ya-dong, LI Wei-zhi. Investigation on Poling and Electric Properties of PVDF Films[J]. Journal of University of Electronic Science and Technology of China, 2012, 41(3): 463-466. doi: 10.3969/j.issn.1001-0548.2012.03.027

Citation:

YE Yun, GUO Tai-liang, JIANG Ya-dong, LI Wei-zhi. Investigation on Poling and Electric Properties of PVDF Films[J]. Journal of University of Electronic Science and Technology of China, 2012, 41(3): 463-466. doi: 10.3969/j.issn.1001-0548.2012.03.027

PVDF薄膜的极化及其电性能研究

doi: 10.3969/j.issn.1001-0548.2012.03.027

1.
福州大学物理与信息工程学院福州 350002;
2.
电子科技大学电子薄膜与集成器件国家重点实验室成都 610054

基金项目:

国家杰出青年基金(60425101);国家重点实验室开发课题(KFJJ200916);福建省科技厅项目(2009J05145)

详细信息

作者简介:
叶芸(1977-),女,博士,副研究员,主要从事光电材料与器件方面的研究.

中图分类号: TQ342.⁺712

Investigation on Poling and Electric Properties of PVDF Films

1.
College of Physics and Telecommunication Engineering,Fuzhou University Fuzhou 350002;
2.
State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China Chengdu 610054

摘要: 利用傅里叶红外光谱(FTIR)、示差扫描量热分析(DSC)、电滞回线和漏电流的分析,研究热极化和电晕极化对PVDF薄膜电性能的影响。结果表明,热极化和电晕极化都可以提高PVDF薄膜的铁电性能,但是不同的极化温度、极化电场强度和极化时间使得PVDF薄膜具有不同的漏电流性能。在强电场作用下,热极化的温度更高,时间更长,偶极电荷的沿电场取向更完全,α晶型向β晶型的转变更彻底,因此剩余极化值、结晶度和β晶型的含量均高于电晕极化后的薄膜。热极化中注入的空间电荷主要被PVDF的深阱俘获;而电晕极化过程中大量的空间电荷被聚合物材料的浅阱俘获。浅阱俘获的空间电荷稳定性要弱于深阱中的电荷,因此电晕极化的PVDF薄膜的漏电流需要更长的稳定时间。
- 电晕极化 /
- 铁电性能 /
- 漏电流 /
- PVDF薄膜 /
- 热极化
Abstract: In this paper, the influence of thermally poling and corona charging on electric properties of PVDF films was investigated by Fourier transform infrared (FTIR), differential scanning calorimetry (DSC), ferroelectric hysteresis loops and leakage current measurement. The results showed that the ferroelectric properties of PVDF films were both improved by thermally poling and corona charging, but the leakage properties of PVDF films were distinct due to different poling temperatures, poling electric fields and poling times. With the effect of high electric field at high temperature in thermally poling, the dipoles were oriented along the direction of electric field completely, which caused more polar β crystalline transited from non-polar α crystalline. So it was found that the crystalline degree, β crystalline content and remanent polarization of thermally poled PVDF films were higher than those of corona charged PVDF films. The reason that caused leakage current was also analyzed. The space charges injected during the poling process were stored in the shallow traps of PVDF films for corona poling and in the deep traps for thermally poling, respectively. Therefore, the leakage current of corona poled PVDF was unstable than that of thermally poled PVDF films.
- corona poling /
- ferroelectric properties /
- leakage current /
- PVDF films /
- thermally poling

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PVDF薄膜的极化及其电性能研究

doi: 10.3969/j.issn.1001-0548.2012.03.027

1. 福州大学物理与信息工程学院福州 350002;

2. 电子科技大学电子薄膜与集成器件国家重点实验室成都 610054

基金项目:

国家杰出青年基金(60425101);国家重点实验室开发课题(KFJJ200916);福建省科技厅项目(2009J05145)

作者简介:
叶芸(1977-),女,博士,副研究员,主要从事光电材料与器件方面的研究.

收稿日期: 2010-09-07
修回日期: 2011-05-10
刊出日期: 2012-06-15

中图分类号: TQ342.⁺712

关键词:

摘要: 利用傅里叶红外光谱(FTIR)、示差扫描量热分析(DSC)、电滞回线和漏电流的分析,研究热极化和电晕极化对PVDF薄膜电性能的影响。结果表明,热极化和电晕极化都可以提高PVDF薄膜的铁电性能,但是不同的极化温度、极化电场强度和极化时间使得PVDF薄膜具有不同的漏电流性能。在强电场作用下,热极化的温度更高,时间更长,偶极电荷的沿电场取向更完全,α晶型向β晶型的转变更彻底,因此剩余极化值、结晶度和β晶型的含量均高于电晕极化后的薄膜。热极化中注入的空间电荷主要被PVDF的深阱俘获;而电晕极化过程中大量的空间电荷被聚合物材料的浅阱俘获。浅阱俘获的空间电荷稳定性要弱于深阱中的电荷,因此电晕极化的PVDF薄膜的漏电流需要更长的稳定时间。

English Abstract

Investigation on Poling and Electric Properties of PVDF Films

1. College of Physics and Telecommunication Engineering,Fuzhou University Fuzhou 350002;

2. State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China Chengdu 610054

Received Date: 2010-09-07
Rev Recd Date: 2011-05-10
Publish Date: 2012-06-15

Keywords:

Abstract: In this paper, the influence of thermally poling and corona charging on electric properties of PVDF films was investigated by Fourier transform infrared (FTIR), differential scanning calorimetry (DSC), ferroelectric hysteresis loops and leakage current measurement. The results showed that the ferroelectric properties of PVDF films were both improved by thermally poling and corona charging, but the leakage properties of PVDF films were distinct due to different poling temperatures, poling electric fields and poling times. With the effect of high electric field at high temperature in thermally poling, the dipoles were oriented along the direction of electric field completely, which caused more polar β crystalline transited from non-polar α crystalline. So it was found that the crystalline degree, β crystalline content and remanent polarization of thermally poled PVDF films were higher than those of corona charged PVDF films. The reason that caused leakage current was also analyzed. The space charges injected during the poling process were stored in the shallow traps of PVDF films for corona poling and in the deep traps for thermally poling, respectively. Therefore, the leakage current of corona poled PVDF was unstable than that of thermally poled PVDF films.

叶芸, 郭太良, 蒋亚东, 黎威智. PVDF薄膜的极化及其电性能研究[J]. 电子科技大学学报, 2012, 41(3): 463-466. doi: 10.3969/j.issn.1001-0548.2012.03.027

引用本文:

叶芸, 郭太良, 蒋亚东, 黎威智. PVDF薄膜的极化及其电性能研究[J]. 电子科技大学学报, 2012, 41(3): 463-466. doi: 10.3969/j.issn.1001-0548.2012.03.027

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留言板

PVDF薄膜的极化及其电性能研究

doi: 10.3969/j.issn.1001-0548.2012.03.027

作者简介:
叶芸(1977-),女,博士,副研究员,主要从事光电材料与器件方面的研究.

Investigation on Poling and Electric Properties of PVDF Films

计量

PVDF薄膜的极化及其电性能研究

doi: 10.3969/j.issn.1001-0548.2012.03.027

1. 福州大学物理与信息工程学院福州 350002;

2. 电子科技大学电子薄膜与集成器件国家重点实验室成都 610054

作者简介:
叶芸(1977-),女,博士,副研究员,主要从事光电材料与器件方面的研究.

English Abstract

Investigation on Poling and Electric Properties of PVDF Films

1. College of Physics and Telecommunication Engineering,Fuzhou University Fuzhou 350002;

2. State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China Chengdu 610054

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期刊在线

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留言板

PVDF薄膜的极化及其电性能研究

doi: 10.3969/j.issn.1001-0548.2012.03.027

作者简介: 叶芸(1977-),女,博士,副研究员,主要从事光电材料与器件方面的研究.

Investigation on Poling and Electric Properties of PVDF Films

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出版历程

PVDF薄膜的极化及其电性能研究

doi: 10.3969/j.issn.1001-0548.2012.03.027

1. 福州大学物理与信息工程学院 福州 350002; 2. 电子科技大学电子薄膜与集成器件国家重点实验室 成都 610054

作者简介: 叶芸(1977-),女,博士,副研究员,主要从事光电材料与器件方面的研究.

English Abstract

Investigation on Poling and Electric Properties of PVDF Films

1. College of Physics and Telecommunication Engineering,Fuzhou University Fuzhou 350002; 2. State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China Chengdu 610054

全文HTML

目录

期刊在线

编辑办公

友情链接

作者简介:
叶芸(1977-),女,博士,副研究员,主要从事光电材料与器件方面的研究.

1. 福州大学物理与信息工程学院福州 350002;

2. 电子科技大学电子薄膜与集成器件国家重点实验室成都 610054

作者简介:
叶芸(1977-),女,博士,副研究员,主要从事光电材料与器件方面的研究.

1. College of Physics and Telecommunication Engineering,Fuzhou University Fuzhou 350002;

2. State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China Chengdu 610054