Beyond energy harvesting - multi-functional triboelectric nanosensors on a textile

By Tianyiyi He, Qiongfeng Shi, Hao Wang, Feng Wen, Tao Chen, Jianyong Ouyang, Chengkuo Lee. Nano Energy, 2019

189 citations recorded by the source corpus.

Abstract To accurately evaluate the wellbeing condition of a person, sensing systems with versatile functions are needed. Apart from directly monitoring vital signs, an indirect monitoring approach by measuring human activities with wearable devices has emerged. Herein, a smart textile fabricated with a simple dip coating method is developed with multiple functionalities, such as energy harvesting, physical sensing, and even gas sensing. A maximum output power density of 2 W m−2 is achieved with a layer of PEDOT: PSS coated textile and PTFE under foot stepping at 2 Hz, and the matched impedance is as low as 14 MΩ. A height-varying multi-arch strain sensor with a large strain sensing range from 10% to 160% is developed. Furthermore, the arch-shaped strain sensors mounted on the human fingers are demonstrated to monitor hand gestures for American Sign Language interpretation and robotic hand control. Additionally, four textile-based sensors located at different body parts are employed to track human activities. Beyond that, the smart textile is also demonstrated to be a building block of a wearable CO2 sensor. Looking forward, this smart textile could be incorporated into real clothes as both energy harvesters and various functional self-powered sensors to enable smart clothes for healthcare monitoring applications.

Subfields: Biomedical Engineering, Cognitive Neuroscience, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/0a91a7c65a072bfe6ad9f8e7569e262f656aed9c

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. Chengkuo Lee
2. Xinge Guo
3. Long Liu
4. Tianyiyi He
5. Feng Wen
6. Zixuan Zhang
7. Qiongfeng Shi
8. Zhongda Sun

In Cognitive Neuroscience

1. Chengkuo Lee
2. Xinge Guo
3. Long Liu
4. Tianyiyi He
5. Feng Wen
6. Zixuan Zhang
7. Qiongfeng Shi
8. Jianxiong Zhu

In Polymers and Plastics

1. Chengkuo Lee
2. Xinge Guo
3. Long Liu
4. Tianyiyi He
5. Qiongfeng Shi
6. Zixuan Zhang
7. Feng Wen
8. Philippe Vachon

Citations in the corpus

• Progress in wearable electronics/photonics—Moving toward the era of artificial intelligence and internet of things (2020, methodology): “…evaluate the wellbeing conditions of a person, a smart and multifunctional textile based on a simple dip-coating method is illustrated in Figure 2D. 104,105 It is shown that a maximum output power density of 2 Wm − 2 can be realized with a polymer-coated textile, which also possesses good CO 2…”
• Battery-free short-range self-powered wireless sensor network (SS-WSN) using TENG based direct sensory transmission (TDST) mechanism (2020, background): “sensors becomes the major bottleneck of WSN technologies [34].”
• Design, manufacturing and applications of wearable triboelectric nanogenerators (2021, unknown): “1G [47]).”
• Progress in TENG technology—A journey from energy harvesting to nanoenergy and nanosystem (2020, background): “Besides polymer dispersed liquid crystal, self-powered elastomer-based tunable displays are also realized by TENG.104,256 The voltage output from TENG induces rippling of the elastomer that varies its transparency.”
• Promoting smart cities into the 5G era with multi-field Internet of Things (IoT) applications powered with advanced mechanical energy harvesters (2021, background): “Meanwhile, developing energy harvesting technologies provide new strategies to meet the electric energy demands of devices in the smart home [334].”