A High Sensitivity Self-Powered Wind Speed Sensor Based on Triboelectric Nanogenerators (TENGs)

Triboelectric nanogenerators (TENGs) have excellent properties in harvesting tiny environmental energy and self-powered sensor systems with extensive application prospects. Here, we report a high sensitivity self-powered wind speed sensor based on triboelectric nanogenerators (TENGs). The sensor consists of the upper and lower two identical TENGs. The output electrical signal of each TENG can be used to detect wind speed so that we can make sure that the measurement is correct by two TENGs. We study the influence of different geometrical parameters on its sensitivity and then select a set of parameters with a relatively good output electrical signal. The sensitivity of the wind speed sensor with this set of parameters is 1.79 μA/(m/s) under a wind speed range from 15 m/s to 25 m/s. The sensor can light 50 LEDs at the wind speed of 15 m/s. This work not only advances the development of self-powered wind sensor systems but also promotes the application of wind speed sensing.

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Triboelectric-electromagnetic hybrid nanogenerator driven by wind for self-powered wireless transmission in Internet of Things and self-powered wind speed sensor

Nano Energy ◽

10.1016/j.nanoen.2019.104319 ◽

2020 ◽

Vol 68 ◽

pp. 104319 ◽

Cited By ~ 11

Author(s):

Xueming Fan ◽

Jian He ◽

Jiliang Mu ◽

Jichao Qian ◽

Ning Zhang ◽

...

Keyword(s):

Wind Speed ◽

Internet Of Things ◽

Wireless Transmission ◽

Speed Sensor ◽

Hybrid Nanogenerator ◽

Self Powered

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Low Detection Limit and High Sensitivity Wind Speed Sensor Based on Triboelectrification‐Induced Electroluminescence

Advanced Science ◽

10.1002/advs.201901980 ◽

2019 ◽

Vol 6 (23) ◽

pp. 1901980 ◽

Cited By ~ 2

Author(s):

Li Su ◽

Hailu Wang ◽

Zhen Tian ◽

Haojie Wang ◽

Qian Cheng ◽

...

Keyword(s):

Detection Limit ◽

Wind Speed ◽

High Sensitivity ◽

Low Detection Limit ◽

Speed Sensor

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A breathable, biodegradable, antibacterial, and self-powered electronic skin based on all-nanofiber triboelectric nanogenerators

Science Advances ◽

10.1126/sciadv.aba9624 ◽

2020 ◽

Vol 6 (26) ◽

pp. eaba9624 ◽

Cited By ~ 26

Author(s):

Xiao Peng ◽

Kai Dong ◽

Cuiying Ye ◽

Yang Jiang ◽

Siyuan Zhai ◽

...

Keyword(s):

Moisture Transfer ◽

High Sensitivity ◽

High Specific Surface Area ◽

Silver Nanowire ◽

Whole Body ◽

Joint Movement ◽

Environmental Friendliness ◽

Hierarchical Porous ◽

Self Powered ◽

Triboelectric Nanogenerators

Mimicking the comprehensive functions of human sensing via electronic skins (e-skins) is highly interesting for the development of human-machine interactions and artificial intelligences. Some e-skins with high sensitivity and stability were developed; however, little attention is paid to their comfortability, environmental friendliness, and antibacterial activity. Here, we report a breathable, biodegradable, and antibacterial e-skin based on all-nanofiber triboelectric nanogenerators, which is fabricated by sandwiching silver nanowire (Ag NW) between polylactic-co-glycolic acid (PLGA) and polyvinyl alcohol (PVA). With micro-to-nano hierarchical porous structure, the e-skin has high specific surface area for contact electrification and numerous capillary channels for thermal-moisture transfer. Through adjusting the concentration of Ag NW and the selection of PVA and PLGA, the antibacterial and biodegradable capability of e-skins can be tuned, respectively. Our e-skin can achieve real-time and self-powered monitoring of whole-body physiological signal and joint movement. This work provides a previously unexplored strategy for multifunctional e-skins with excellent practicability.

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Progress on Self-Powered Wearable and Implantable Systems Driven by Nanogenerators

Micromachines ◽

10.3390/mi12060666 ◽

2021 ◽

Vol 12 (6) ◽

pp. 666

Author(s):

Lanxin Yang ◽

Zhihao Ma ◽

Yun Tian ◽

Bo Meng ◽

Zhengchun Peng

Keyword(s):

Mechanical Energy ◽

Rapid Development ◽

Electronic Devices ◽

High Sensitivity ◽

Self Powered ◽

Triboelectric Nanogenerators ◽

The Internet Of Things ◽

Piezoelectric Nanogenerators

With the rapid development of the internet of things (IoT), sustainable self-powered wireless sensory systems and diverse wearable and implantable electronic devices have surged recently. Under such an opportunity, nanogenerators, which can convert continuous mechanical energy into usable electricity, have been regarded as one of the critical technologies for self-powered systems, based on the high sensitivity, flexibility, and biocompatibility of piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs). In this review, we have thoroughly analyzed the materials and structures of wearable and implantable PENGs and TENGs, aiming to make clear how to tailor a self-power system into specific applications. The advantages in TENG and PENG are taken to effectuate wearable and implantable human-oriented applications, such as self-charging power packages, physiological and kinematic monitoring, in vivo and in vitro healing, and electrical stimulation. This review comprehensively elucidates the recent advances and future outlook regarding the human body’s self-powered systems.

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