Electronegative polyvinylidene fluoride/C60 composite nanofibers for performance enhancement of triboelectric nanogenerators

2021 ◽  
pp. 162805
Author(s):  
Dong-Jun Sim ◽  
Geon-Ju Choi ◽  
Sang-Hyun Sohn ◽  
Il-Kyu Park
Nano Energy ◽  
2021 ◽  
Vol 86 ◽  
pp. 106126
Author(s):  
Ruey-Chi Wang ◽  
Yu-Cheng Lin ◽  
Po-Tsang Chen ◽  
Hsiu-Cheng Chen ◽  
Wan-Ting Chiu

2015 ◽  
Vol 814 ◽  
pp. 91-95
Author(s):  
Cheng Wang ◽  
Hao Yu ◽  
Tao Huang ◽  
Chao Tan

Triboelectric nanogenerators have recently been used to harvest mechanical energy from surrounding environment which is of great significance in the field of energy conversion. Electrospinning provides a simple, low cost and versatile method for the generation of 1D nanostrucutures. Nanofiber membranes have many advantages over the commonly used dense film for designing the riboelectric nanogenerators, such as the low wear resistance caused from the internal and excellent external consistency of the electrospinning membranes. In this paper, we produce a variety of polymer films by electro-spinning, and fabricate Polyvinylidene Fluoride (PVDF) triboelectric nanogenerators with different polymer films afterwards. We except to explore the TEG power generation effect, and influencing factors, and then determine the best combination of the results of TEG (PVDF-PHBV). Such a flexible polymer TEG generates output voltage of up to 112 V at a power of 0.045W.


NANO ◽  
2020 ◽  
Vol 15 (04) ◽  
pp. 2050049 ◽  
Author(s):  
Ramadoss Tamil Selvan ◽  
Choo Yan Jia ◽  
W. A. D. M. Jayathilaka ◽  
Amutha Chinappan ◽  
Hilaal Alam ◽  
...  

Piezoelectric principle is one of the popular choices when it comes to mechanical energy recovery and conversion of energy into electrical energy which can be either stored or used straightaway. In general, ceramic-based piezoelectric materials like Lead Zirconate Titanate (PZT) had been the popular choice for piezoelectric devices even though they are brittle in nature and found to be toxic in long uses. At the same time, organic-based Polyvinylidene Fluoride (PVDF) and similar polymeric materials have been used in different applications with an offer of flexibility, lightweight and biocompatibility. One major factor dragging down the usage of organic materials in piezoelectric applications is their poor piezoelectric responses. In this work, authors are reporting the enhanced piezoelectric properties of nanofibers of PVDF in composite with copper nanoparticles and Multiwalled Carbon Nanotubes (MWCNTs). Fourier Transformation Infrared (FTIR) analysis has been carried out for nanofibers and was able to prove the higher beta phase conversion of PVDF in composite nanofibers when compared with pristine nanofibers. Composite nanofibers were later fabricated into a piezoelectric device with two electrodes and have shown a peak voltage of 6.78 V upon a drop test. As a proof of concept, the mentioned piezoelectric device was integrated into a shoe-based prototype where it has shown 18–20[Formula: see text]V energy harvesting upon walking at leisurely pace.


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