Enhanced Energy Harvesting Ability of ZnO/PAN Hybrid Piezoelectric Nanogenerators

ACS Applied Materials & Interfaces
Yue SunWan Shou

Abstract

Miniaturization of energy conversion and storage devices has attracted remarkable consideration in the application of wearable electronics. Compared with film-based flexible electronics, fiber-based wearable electronics (e.g., nanogenerators and sensors made from electrospun nanofibers) are more appealing and promising for wearables. However, there are two bottlenecks, a low power output and poor sensing capability, limiting the application of piezoelectric nanofibers. Herein, we integrated zinc oxide nanorods (ZnO NRs) to a less known piezoelectric polymer, polyacrylonitrile (PAN) nanofiber, forming a ZnO/PAN nanofabric, which significantly improved the pressure sensitivity and vibrational energy harvesting ability by about 2.7 times compared with those of the pristine PAN nanofiber, and the maximum output power density of ∼10.8 mW·m-2 is achieved. Noteworthily, the ZnO/PAN nanofabric showed a power output about twice of the one made of ZnO and polyvinylidene fluoride. It was revealed that the integration of ZnO NRs clearly improved the planar zigzag conformation in microstructures of the PAN nanofiber. Further, successful demonstrations of a mechanically robust pressure sensor and wearable power source confirm the potential a...Continue Reading

References

Nov 6, 2009·Physical Chemistry Chemical Physics : PCCP·Gwang Ho KimYongsok Seo
Mar 30, 2010·Nature Nanotechnology·Sheng XuZhong Lin Wang
Jan 11, 2016·Advanced Materials·Feng Ru FanZhong Lin Wang
Jan 23, 2016·ACS Applied Materials & Interfaces·Mahmoud BaniasadiMajid Minary-Jolandan
Oct 5, 2016·ACS Applied Materials & Interfaces·Qiang ZhengZhong Lin Wang
Feb 6, 2020·ACS Applied Materials & Interfaces·Ensieh S HosseiniRavinder Dahiya
Apr 8, 2020·Research : a Science Partner Journal·Zhe LiZhou Li

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