基于无铅钛酸钡/石墨烯/PDMS三相复合压电纳米发电机的研究

doi:10.12263/DZXB.20210409

电子学报 ›› 2022, Vol. 50 ›› Issue (9): 2189-2195.DOI: 10.12263/DZXB.20210409

基于无铅钛酸钡/石墨烯/PDMS三相复合压电纳米发电机的研究

罗翠线¹, 王莹², 李朋伟³()

^1.山西财经大学信息学院, 山西太原 030006
^2.山西大学物理电子工程学院, 山西太原 030006
^3.太原理工大学信息与计算机学院, 山西太原 030024

收稿日期:2021-03-29 修回日期:2022-04-19 出版日期:2022-09-25
- 通讯作者:
- 李朋伟
- 作者简介:
- 罗翠线　女，1990年3月出生于陕西省咸阳市. 现为山西财经大学信息学院讲师、硕士生导师，主要研究方向为压电式换能与传感器件. E-mail: 20191008@sxufe.edu.cn
  王　莹　女，1987年6月出生于山西省孝义市. 现为山西大学物理电子工程学院讲师，主要研究方向为传感器与智能传感控制. E-mail: wangying52@sxu.edu.cn
  李朋伟　男，1981年5月出生于河南省漯河市. 现为太原理工大学信息与计算机学院教授、硕士生导师，主要研究方向为半导体材料与电子器件.
- 基金资助:
- 山西省自然科学基金 (20210302124559)

Lead-Free Barium Titanate/Graphene Oxide /PDMS Three-Phase Composite Piezoelectric Nanogenerator

LUO Cui-xian¹, WANG Ying², LI Peng-wei³()

^1.College of Information，Shanxi University of Finance and Economics，Taiyuan，Shanxi 030006，China
^2.College of Physics and Electronic Engineering，Shanxi University，Taiyuan，Shanxi 030006，China
^3.College of Information & Computer，Taiyuan University of Technology，Taiyuan，Shanxi 030024，China

Received:2021-03-29 Revised:2022-04-19 Online:2022-09-25 Published:2022-10-26
- Corresponding author:
- LI Peng-wei

摘要/Abstract

摘要：

本文利用固相法合成了无铅钛酸钡（BaTiO₃，BTO）纳米颗粒，并将其与不同含量的石墨烯（Graphene Oxide，GO）和聚二甲基硅氧烷（PolyDiMethylSiloxane，PDMS）进行复合制备成薄膜.GO材料作为碳基导电相形成复合材料中的微电容，提高了复合材料的压电性能.对GO含量为0.6 wt%的BaTiO₃/Graphene/Polydimethylsiloxane（BTO/GO/PDMS）复合薄膜的电学和铁电性能进行了测试与分析.实验结果表明：所制备的BTO/GO/PDMS复合薄膜的介电常数为185，剩余极化强度高达每平方厘米13.47 μC（高于纯相的BaTiO₃/Polydimethylsiloxane（BTO/PDMS）复合薄膜）.BTO/GO/PDMS基纳米复合薄膜发电机的开路电压是BTO/PDMS基纳米发电机的2.78倍.基于上述研究成果，这种无铅绿色友好型柔性复合材料在振动能量采集和集成铁电器件方面具有广泛的应用前景.

关键词: BaTiO₃/GO/PDMS, 三相复合薄膜, 柔性压电材料, 纳米发电机

Abstract:

A lead-free barium titanate(BaTiO₃, BTO)/graphene Oxide(GO)/Polydimethylsiloxane(PDMS) three-phase high-performance piezoelectric composite film is prepared. GO is used as a carbon-based conductive phase material to form micro-capacitors in the ferroelectric composite film, which improves the piezoelectric performance of the composite films. When the GO concentration is 0.6 wt%, the electrical and ferroelectric properties of the composite films are measured. The experimental results show that the prepared BTO/GO/PDMS composite film has a dielectric constant of 185 and a residual polarization of 13.47 μC per square centimeter (higher than the pure phase BTO/PDMS composite film). The maximum open circuit voltage of the BTO/GO/PDMS nanocomposite film generator is 2.78 times that of the BTO/PDMS nanocomposite film generator. Based on the above research results, this lead-free green-friendly flexible composite material has great application prospects in vibration energy harvesting and integrated ferroelectric devices.

Key words: BaTiO₃/GO/PDMS, three-phase composite film, flexible piezoelectric material, nanogenerator

中图分类号:

TM282

罗翠线, 王莹, 李朋伟. 基于无铅钛酸钡/石墨烯/PDMS三相复合压电纳米发电机的研究[J]. 电子学报, 2022, 50(9): 2189-2195.

Cui-xian LUO, Ying WANG, Peng-wei LI . Lead-Free Barium Titanate/Graphene Oxide /PDMS Three-Phase Composite Piezoelectric Nanogenerator[J]. Acta Electronica Sinica, 2022, 50(9): 2189-2195.

图/表 6

图1 BTO和BTO/GO复合材料的形貌结构

图2 BTO和BTO/GO复合材料的XRD图

图3 BTO/GO/PDMS复合薄膜制备流程图

图4 不同GO含量的BTO/GO/PDMS复合薄膜的电学和铁电性能曲线

图5 发电机压电性能机理示意图

图6 纳米发电机稳定性测试

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[1]	顾聪, 陈远晟, 王浩, 陈威. 直管谐振式低频压电声能量回收系统[J]. 电子学报, 2020, 48(10): 2071-2076.
[2]	罗翠线, 秦敏哲. 基于模态分离技术的3×n阵列式低频宽带压电振动发电机的设计研究[J]. 电子学报, 2020, 48(3): 554-560.

基于无铅钛酸钡/石墨烯/PDMS三相复合压电纳米发电机的研究

Lead-Free Barium Titanate/Graphene Oxide /PDMS Three-Phase Composite Piezoelectric Nanogenerator

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