石墨烯
材料科学
压电
丙酮
溶剂
纳米发生器
复合数
化学工程
制作
相(物质)
耐久性
复合材料
纳米技术
有机化学
化学
病理
工程类
替代医学
医学
作者
Januar Widakdo,Wen-Ching Lei,Anawati Anawati,Subrahmanya Thagare Manjunatha,Hannah Faye M. Austria,Owen Setiawan,Tsung-Han Huang,Yu‐Hsuan Chiao,Wei‐Song Hung,Ming‐Hua Ho
出处
期刊:Polymers
[MDPI AG]
日期:2022-12-28
卷期号:15 (1): 137-137
被引量:1
标识
DOI:10.3390/polym15010137
摘要
A persistent purpose for self-powered and wearable electronic devices is the fabrication of graphene-PVDF piezoelectric nanogenerators with various co-solvents that could provide enhanced levels of durability and stability while generating a higher output. This study resulted in a piezoelectric nanogenerator based on a composite film composed of graphene, and poly (vinylidene fluoride) (PVDF) as a flexible polymer matrix that delivers high performance, flexibility, and cost-effectiveness. By adjusting the co-solvent in the solution, a graphene-PVDF piezoelectric nanogenerator can be created (acetone, THF, water, and EtOH). The solution becomes less viscous and is more diluted the more significant the concentration of co-solvents, such as acetone, THF, and EtOH. Additionally, when the density is low, the thickness will be thinner. The final film thickness for all is ~25 µm. Furthermore, the- crystal phase becomes more apparent when graphene is added and combined with the four co-solvents. Based on the XRD results, the peak changes to the right, which can be inferred to be more dominant with the β-phase. THF is the co-solvent with the highest piezoelectric output among other co-solvents. Most of the output voltages produced are 0.071 V and are more significant than the rest.
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