@article{82ea98fdfba54a2590e90eac43251e9e,
title = "Cost-effective and strongly integrated fabric-based wearable piezoelectric energy harvester",
abstract = "Fabric-based wearable electronics are becoming more important in the fourth industrial revolution (4IR) era due to their connectivity, wearability, comfort, and durability. Conventional fabric-based wearable electronics have been demonstrated by several researchers, but still need complex methods or additional supports to be fabricated and sewed in clothing. Herein, a cost-effective, high throughput, and strongly integrated fabric-based wearable piezoelectric energy harvester (fabric-WPEH) is demonstrated. The fabric-WPEH has a heterostructure of a ferroelectric polymer, poly(vinylidene fluoride-co-trifluoroethylene) [P(VDF-TrFE)] and two conductive fabrics via simple fabrication of tape casting and hot pressing. Our fabrication process would enable the direct application of the unit device to general garments using hot pressing as graphic patches can be attached to the garments by heat press. Simulation and experimental analysis demonstrate fully bendable, compact and concave interfaces and a high piezoelectric d33 coefficient (−32.0 pC N−1) of the P(VDF-TrFE) layer. The fabric-WPEH generates piezoelectric output signals from human motions (pressing, bending) and from quantitative force test machine pressing. Furthermore, a record high interfacial adhesion strength (22 N cm−1) between the P(VDF-TrFE) layer and fabric layers has been measured by surface and interfacial cutting analysis system (SAICAS) for the first time in the field of fabric-based wearable piezoelectric electronics.",
keywords = "Adhesion strength, Energy harvester, Fabric, Hot pressing, Piezoelectric",
author = "Jaegyu Kim and Seoungwoo Byun and Sangryun Lee and Jeongjae Ryu and Seongwoo Cho and Chungik Oh and Hongjun Kim and Kwangsoo No and Seunghwa Ryu and Lee, {Yong Min} and Seungbum Hong",
note = "Funding Information: We acknowledge the help of Prof. Steve Park's laboratory at KAIST to use the force test machine. This work was supported by the KAIST High Risk High Return Project (HRHRP), Basic Science Research Program (NRF-2018R1A2B6002194 and 2019R1A2C4070690) through the NRF Korea funded by the Ministry of Science and ICT, and the Wearable Platform Materials Technology Center funded by the National Research Foundation of Korea (NRF) Grant of the Korean Government (MSIT) (NRF-2016R1A5A1009926), the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A2C201207811) and was based on a research which has been conducted as part of the KAIST-funded Global Singularity Research Program for 2019 and 2020. Funding Information: We acknowledge the help of Prof. Steve Park's laboratory at KAIST to use the force test machine. This work was supported by the KAIST High Risk High Return Project (HRHRP), Basic Science Research Program ( NRF-2018R1A2B6002194 and 2019R1A2C4070690 ) through the NRF Korea funded by the Ministry of Science and ICT , and the Wearable Platform Materials Technology Center funded by the National Research Foundation of Korea (NRF) Grant of the Korean Government (MSIT) ( NRF-2016R1A5A1009926 ), the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A2C201207811 ) and was based on a research which has been conducted as part of the KAIST-funded Global Singularity Research Program for 2019 and 2020. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",
year = "2020",
month = sep,
doi = "10.1016/j.nanoen.2020.104992",
language = "English",
volume = "75",
journal = "Nano Energy",
issn = "2211-2855",
publisher = "Elsevier BV",
}
