{"title":"Graphene oxide effects on piezoelectric, thermal, and mechanical properties of PVDF-HFP/CBT nanocomposite fibers for energy harvesting applications","authors":"R. Gowdaman, A. Deepa","doi":"10.1007/s10965-025-04535-5","DOIUrl":null,"url":null,"abstract":"<div><p>In this research work, the piezoelectric performance of polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) was significantly enhanced by the incorporation of copper-doped barium titanate (CBT) and graphene oxide (GO) nanofillers. A systematic study was conducted by varying the nanofiller content to 1, 2, 3, 4, and 5 wt%, followed by fabricating nanocomposite fiber mats using the electrospinning technique. This approach ensured the formation of continuous, flexible, and uniformly dispersed nanofibers, which are essential for piezoelectric applications. Multiple analytical techniques were used to characterize the developed nanofiber mats comprehensively. The electrospun nanofiber mats with varying CBT and GO concentrations were further utilized to fabricate piezoelectric nanogenerators (PENGs). These devices were subjected to electrical output testing under mechanical stimuli, specifically finger-tapping conditions, to simulate practical energy harvesting scenarios. Results showed a clear improvement in the output voltage with increasing filler content, which can be attributed to the strong interfacial interaction between the β-phase PVDF-HFP chains and the surface of the CBT and GO nanofillers. This novel nanogenerator design offers promising utility in wearable sensors, energy-harvesting systems, flexible/stretchable electronics, and self-powered devices, making it a viable candidate for the evolving field of sustainable energy and smart systems.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 9","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Polymer Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10965-025-04535-5","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
In this research work, the piezoelectric performance of polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) was significantly enhanced by the incorporation of copper-doped barium titanate (CBT) and graphene oxide (GO) nanofillers. A systematic study was conducted by varying the nanofiller content to 1, 2, 3, 4, and 5 wt%, followed by fabricating nanocomposite fiber mats using the electrospinning technique. This approach ensured the formation of continuous, flexible, and uniformly dispersed nanofibers, which are essential for piezoelectric applications. Multiple analytical techniques were used to characterize the developed nanofiber mats comprehensively. The electrospun nanofiber mats with varying CBT and GO concentrations were further utilized to fabricate piezoelectric nanogenerators (PENGs). These devices were subjected to electrical output testing under mechanical stimuli, specifically finger-tapping conditions, to simulate practical energy harvesting scenarios. Results showed a clear improvement in the output voltage with increasing filler content, which can be attributed to the strong interfacial interaction between the β-phase PVDF-HFP chains and the surface of the CBT and GO nanofillers. This novel nanogenerator design offers promising utility in wearable sensors, energy-harvesting systems, flexible/stretchable electronics, and self-powered devices, making it a viable candidate for the evolving field of sustainable energy and smart systems.
期刊介绍:
Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology.
As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including:
polymer synthesis;
polymer reactions;
polymerization kinetics;
polymer physics;
morphology;
structure-property relationships;
polymer analysis and characterization;
physical and mechanical properties;
electrical and optical properties;
polymer processing and rheology;
application of polymers;
supramolecular science of polymers;
polymer composites.