Transparent and flexible piezoelectric sensor for detecting human movement with a boron nitride nanosheet (BNNS)
- Authors
- Kim, Kyung-Bum; Jang, Wooree; Cho, Jae Yong; Woo, Sang Bum; Jeon, Deok Hwan; Ahn, Jung Hwan; Do Hong, Seong; Koo, Hye Young; Sung, Tae Hyun
- Issue Date
- Dec-2018
- Publisher
- ELSEVIER
- Keywords
- Flexible piezoelectric sensor; Transparent; Biocompatible; Human movement; Boron nitride nanosheet
- Citation
- NANO ENERGY, v.54, pp.91 - 98
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANO ENERGY
- Volume
- 54
- Start Page
- 91
- End Page
- 98
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/148842
- DOI
- 10.1016/j.nanoen.2018.09.056
- ISSN
- 2211-2855
- Abstract
- For the development and application of wearable electronics, a transparent and flexible piezoelectric sensor (TFPS) system is an important component considering the physical motion energy of the human body. This work newly proposes a transparent and biocompatible boron nitride nanosheet (BNNS) material with a TFPS device. The TFPS device is based on BNNS as a piezoelectric active component and PDMS as a flexible element. The device is able to generate electrical energy from mechanical push force and human movement; it has an output voltage of 22 V, output current of 75 nA, output power of 40 mu W (power density: 106 mu W/cm(3)), and energy conversion efficiency of 12.6%. In addition, the TFPS device based on BNNS (1.0 wt%) is proposed as a significant step toward devices which are self-powered by the biomechanical movement of the human foot, neck, wrist, and knee, converted into electric energy in various signal forms. It will be deployed as a body-movement sensor.
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