无铅BaTiO<sub>3</sub>/GO/PDMS复合的柔性叉指式压电发电机的设计与试验

罗翠线; 魏文伯

doi:10.3788/OPE.20192709.2002

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无铅BaTiO₃/GO/PDMS复合的柔性叉指式压电发电机的设计与试验

微纳技术与精密机械 | 更新时间：2020-08-13

- 无铅BaTiO₃/GO/PDMS复合的柔性叉指式压电发电机的设计与试验
- Flexible interdigital piezoelectric vibration generator based on BaTiO₃/GO/PDMS lead-free composite
- 光学精密工程 2019年27卷第9期页码：2002-2010
- 作者机构：
  
  1.山西财经大学信息学院, 山西太原 030006
  2.成都京东方光电科技有限公司, 四川成都 611731
- 作者简介：
  
  [ "罗翠线(1990-)，女，陕西咸阳人，博士，讲师，2018年于太原理工大学获得博士学位，主要从事无铅压电材料和微能源器件的研究。E-mail:20191008@sxufe.edu.cn" ]
  魏文伯(1981-)，男，山西太原人，高级工程师，2004年于太原理工大学获得通信工程及科技英语的双学士学位, 主要从半导体，TFT-LCD技术的研究及理论分析。E-mail: leftovers@163.com WEI Wen-bo, E-mail: leftovers@163.com
- 基金信息：
  
  山西省人才项目(201605D211020);国家留学基金资助项目(201706930003);山西省高等学校科技创新项目(2019L0473);山西省高等学校科技创新项目(2019L1009)
- DOI：10.3788/OPE.20192709.2002
  中图分类号： TM619;TM282
- 收稿日期：2019-05-27，
  
  录用日期：2019-6-12，
  
  纸质出版日期：2019-09-15
- 稿件说明：
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罗翠线, 魏文伯. 无铅BaTiO₃/GO/PDMS复合的柔性叉指式压电发电机的设计与试验[J]. 光学精密工程, 2019,27(9):2002-2010.

Cui-xian LUO, Wen-bo WEI. Flexible interdigital piezoelectric vibration generator based on BaTiO₃/GO/PDMS lead-free composite[J]. Optics and precision engineering, 2019, 27(9): 2002-2010.
罗翠线, 魏文伯. 无铅BaTiO₃/GO/PDMS复合的柔性叉指式压电发电机的设计与试验[J]. 光学精密工程, 2019,27(9):2002-2010. DOI： 10.3788/OPE.20192709.2002.

Cui-xian LUO, Wen-bo WEI. Flexible interdigital piezoelectric vibration generator based on BaTiO₃/GO/PDMS lead-free composite[J]. Optics and precision engineering, 2019, 27(9): 2002-2010. DOI： 10.3788/OPE.20192709.2002.

摘要

传统的压电振动发电机具有工作频带窄，压电陶瓷易碎且含铅等缺陷，无法满足当前微型传感器件可穿戴、小型化、便携式等要求。本文制备了一种高性能的钛酸钡/石墨烯/聚二甲基硅氧烷(BaTiO

/GO/PDMS)三元无铅压电复合薄膜。GO材料的比表面较大且流动性较强，在铁电材料中易形成微电容从而提高复合薄膜的压电性能。当BaTiO

/GO/PDMS复合薄膜中GO质量分数为0.6 wt%时，复合薄膜的介电常数和导电率分别为185和8.5×10

-5

S/m。BaTiO

/GO/PDMS复合薄膜的剩余极化强度值为13.47 μC/cm

，比未添加GO材料时提高了28%。所制备的BaTiO

/GO/PDMS三元复合薄膜发电机的最大输出电压达7.71 V，是BaTiO

/PDMS二元复合薄膜发电机的2.78倍。将BaTiO

/GO/PDMS复合柔性纳米薄膜应用于非对称叉指式压电拾振结构，填充GO后非对称叉指式拾振结构的输出电压明显增加，拾振结构的-3dB带宽由未填充GO时的8.7 Hz增加到填充GO后的11.2 Hz。所提出的BaTiO

/GO/PDMS无铅复合柔性压电纳米发电机在柔性能量采集拾振结构方面具有巨大的应用前景。

Abstract

Traditional piezoelectric capturing systems have the disadvantages of narrow work bandwidths and fragile piezoelectric ceramic materials

which are unable to meet the requirements of wearable

miniaturized

or portable devices. This paper reports on high performance composite films based on BaTiO

/Graphene Oxide/polydimethyl siloxane (BaTiO

/GO/PDMS) with different GO content. GO with a large specific surface and strong fluidity was employed as a carbon-based conductive phase material to form micro-capacitors in the ferroelectric composite and thus enhance the piezoelectric performance of the given sample. The as-prepared BaTiO

/GO/PDMS composite films with 0.6 wt% GO showed a dielectric constant of 185 and a conductivity of 8.5×10

-5

S/m. In addition

a remnant polarization of 13.47 μC/cm

could be obtained

which is 28% higher than that of films of pure BaTiO

/PDMS. In contrast

the synthesized BaTiO

/GO/PDMS composite film exhibited a maximum output voltage of approximately 7.71 V

which is approximately 2.78 times higher than that of the film without GO. The performance of lead-free flexible piezoelectric nanogenerators was significantly enhanced after being compounded with GO materials. Moreover

an unsymmetrical interdigital harvester with BaTiO

/GO/PDMS piezoelectric materials was fabricated. The results indicated that the output voltage of the harvester compounded with GO increased and that the -3 dB bandwidth of harvesters increased from 8.7 Hz (without GO) to 11.2 Hz (with GO). Therefore

the proposed BaTiO

/GO/PDMS lead-free flexible composite piezoelectric nanogenerator presents great prospects in flexible energy harvesting.

关键词

Keywords

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无铅BaTiO3/GO/PDMS复合的柔性叉指式压电发电机的设计与试验

无铅BaTiO3/GO/PDMS复合的柔性叉指式压电发电机的设计与试验

Flexible interdigital piezoelectric vibration generator based on BaTiO3/GO/PDMS lead-free composite

DOI：10.3788/OPE.20192709.2002

摘要

Abstract

关键词

Keywords

references

无铅BaTiO₃/GO/PDMS复合的柔性叉指式压电发电机的设计与试验

Flexible interdigital piezoelectric vibration generator based on BaTiO₃/GO/PDMS lead-free composite