Giant Energy Harvesting by Pyroelectric Effect in Relaxor Ferroelectric Terpolymer Poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene)

ZHU Hong-ying; WANG Xiang-hu; WANG Zhi-jie; WANG Jun; GUO Qun-chao

doi:10.3788/fgxb20163705.0538

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Giant Energy Harvesting by Pyroelectric Effect in Relaxor Ferroelectric Terpolymer Poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene)

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- Giant Energy Harvesting by Pyroelectric Effect in Relaxor Ferroelectric Terpolymer Poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene)
- Chinese Journal of Luminescence Vol. 37, Issue 5, Pages: 538-542(2016)
- 作者机构：
  
  1. 上海电机学院机械学院上海,200245
  2. 上海电机学院电气学院上海,201306
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163705.0538
  CLC： O469;O59
- Received：20 January 2016，
  
  Revised：15 March 2016，
  
  Published：05 May 2016
- 稿件说明：
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朱红英, 王相虎, 王致杰等. 基于弛豫型铁电三元共聚物聚(偏氟乙烯-三氟乙烯-氯代偏氟乙烯)热释电性能的能量采集研究[J]. 发光学报, 2016,37(5): 538-542

ZHU Hong-ying, WANG Xiang-hu, WANG Zhi-jie etc. Giant Energy Harvesting by Pyroelectric Effect in Relaxor Ferroelectric Terpolymer Poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene)[J]. Chinese Journal of Luminescence, 2016,37(5): 538-542
朱红英, 王相虎, 王致杰等. 基于弛豫型铁电三元共聚物聚(偏氟乙烯-三氟乙烯-氯代偏氟乙烯)热释电性能的能量采集研究[J]. 发光学报, 2016,37(5): 538-542 DOI： 10.3788/fgxb20163705.0538.

ZHU Hong-ying, WANG Xiang-hu, WANG Zhi-jie etc. Giant Energy Harvesting by Pyroelectric Effect in Relaxor Ferroelectric Terpolymer Poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene)[J]. Chinese Journal of Luminescence, 2016,37(5): 538-542 DOI： 10.3788/fgxb20163705.0538.

摘要

研究了利用弛豫型铁电三元聚合物薄膜P(VDF-TrFE-CFE)的热释电性质

以温度波动作为初始能量形式进行热电能量的采集。由于该聚合物薄膜在发生由温度变化诱导的纳米极性区极化机制转换时

介电常数表现出明显的非线性变化

所以可以结合Ericsson循环实现热电能量采集。实验结果显示

最佳能量采集温度区间为20~-20℃

利用不同温度下的单极性电滞回线进行Ericsson循环模拟

两种模拟方式分别实现能量采集最大值和最小值

并从微观角度给出了两种模式的解释。同时研究了温度波动和外加电场对能量采集的影响。在外加电场100 kVmm

-1

、温度波动为40℃的情况下

能量采集值达到3483 mJcm

-3

。与单晶材料相比

能量采集值提高了10倍。当工作温度降低至室温时

材料具有柔性

在能量采集方面具有应用潜力。

Abstract

Energy harvesting was investigated in relaxor ferroelectric terpolymer P(VDF-TrFE-CFE) by pyroelectric effect. Original energy was the temperature fluctuations. Due to the non-linear dielectric property in the vicinity of polarization mechanism transition of nanopolar regions

we can harvest energy by operating Ericsson cycle. Experimental results show that the best energy harvesting temperature range is from 20 to -20℃. Ericssion cycle was simulated using the unipolar cycle at different temperatures. Two modes of energy harvesting were presented and analyzed:modeⅠmaximizing and mode Ⅱ minimizing harvested energy

mode Ⅰ is idealized

by applying a low voltage

the harvested energy can reach nearly maximum. The explanation of the two modes was given from the view of microstructure. Temperature and electric field dependence was also given

at 100 kVmm

-1

temperature from 20 to -20℃

giant energy can be harvested around 3483 mJcm

-3

. Compared with the single crystals

the advantages

such as the harvested energy increased by 10 times

working temperature decreased to room temperature

and the material flexibility

make it possible as a good candidate for energy harvesting.

关键词

Keywords

references

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