scholarly journals Recent Progress of Self-Powered Sensing Systems for Wearable Electronics

Small ◽  
2017 ◽  
Vol 13 (45) ◽  
pp. 1701791 ◽  
Author(s):  
Zheng Lou ◽  
La Li ◽  
Lili Wang ◽  
Guozhen Shen
Keyword(s):  
Recent Progress ◽  
Wearable Electronics ◽  
Sensing Systems ◽  
Self Powered

scholarly journals Progress and Perspectives in Designing Flexible Microsupercapacitors

Micromachines ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1305
Author(s):  
La Li ◽  
Chuqiao Hu ◽  
Weijia Liu ◽  
Guozhen Shen
Keyword(s):  
Performance Improvement ◽  
Screen Printing ◽  
Implantable Devices ◽  
Wearable Electronics ◽  
Laser Etching ◽  
Sensing Systems ◽  
Future Challenges ◽  
Self Powered ◽  
Easy Integration ◽  
Made In

Miniaturized flexible microsupercapacitors (MSCs) that can be integrated into self-powered sensing systems, detecting networks, and implantable devices have shown great potential to perfect the stand-alone functional units owing to the robust security, continuously improved energy density, inherence high power density, and long service life. This review summarizes the recent progress made in the development of flexible MSCs and their application in integrated wearable electronics. To meet requirements for the scalable fabrication, minimization design, and easy integration of the flexible MSC, the typical assembled technologies consist of ink printing, photolithography, screen printing, laser etching, etc., are provided. Then the guidelines regarding the electrochemical performance improvement of the flexible MSC by materials design, devices construction, and electrolyte optimization are considered. The integrated prototypes of flexible MSC-powered systems, such as self-driven photodetection systems, wearable sweat monitoring units are also discussed. Finally, the future challenges and perspectives of flexible MSC are envisioned.

scholarly journals Direct coherent multi-ink printing of fabric supercapacitors

2021 ◽  
Vol 7 (3) ◽  
pp. eabd6978 ◽  
Author(s):  
Jingxin Zhao ◽  
Hongyu Lu ◽  
Yan Zhang ◽  
Shixiong Yu ◽  
Oleksandr I. Malyi ◽  
...  
Keyword(s):  
System Integration ◽  
High Performance ◽  
Mechanical Stability ◽  
Three Dimensional ◽  
High Mass ◽  
Wearable Electronics ◽  
Energy Storage Devices ◽  
Fabrication Procedure ◽  
Self Powered ◽  
Mechanical Devices

Coaxial fiber-shaped supercapacitors with short charge carrier diffusion paths are highly desirable as high-performance energy storage devices for wearable electronics. However, the traditional approaches based on the multistep fabrication processes for constructing the fiber-shaped energy device still encounter persistent restrictions in fabrication procedure, scalability, and mechanical durability. To overcome this critical challenge, an all-in-one coaxial fiber-shaped asymmetric supercapacitor (FASC) device is realized by a direct coherent multi-ink writing three-dimensional printing technology via designing the internal structure of the coaxial needles and regulating the rheological property and the feed rates of the multi-ink. Benefitting from the compact coaxial structure, the FASC device delivers a superior areal energy/power density at a high mass loading, and outstanding mechanical stability. As a conceptual exhibition for system integration, the FASC device is integrated with mechanical units and pressure sensor to realize high-performance self-powered mechanical devices and monitoring systems, respectively.

Recent progress in the development of sensing systems for in vivo detection of biological hydrogen sulfide

2021 ◽  
pp. 109451
Author(s):  
Jie Li ◽  
Zhe Su ◽  
Changmin Yu ◽  
Yan Yuan ◽  
Qiong Wu ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Recent Progress ◽  
Sensing Systems ◽  
In Vivo Detection

An Efficient Switched-Capacitor DC-DC Buck Converter for Self-Powered Wearable Electronics

2016 ◽  
Vol 63 (10) ◽  
pp. 1557-1566 ◽  
Author(s):  
Dima Kilani ◽  
Mohammad Alhawari ◽  
Baker Mohammad ◽  
Hani Saleh ◽  
Mohammed Ismail
Keyword(s):  
Buck Converter ◽  
Switched Capacitor ◽  
Wearable Electronics ◽  
Self Powered

Energy transfer-based biodetection using optical nanomaterials

2018 ◽  
Vol 6 (19) ◽  
pp. 2924-2944 ◽  
Author(s):  
Bing Chen ◽  
Qianqian Su ◽  
Wei Kong ◽  
Yuan Wang ◽  
Peng Shi ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Recent Progress ◽  
Sensing Systems ◽  
Optical Nanomaterials

This review focuses on recent progress in the development of FRET probes and the applications of FRET-based sensing systems.

scholarly journals Breathable Materials for Triboelectric Effect-Based Wearable Electronics

2018 ◽  
Vol 8 (12) ◽  
pp. 2485 ◽  
Author(s):  
Congju Li ◽  
Ran Cao ◽  
Xiuling Zhang
Keyword(s):  
Recent Progress ◽  
Dielectric Materials ◽  
Wearable Devices ◽  
Wearable Electronics ◽  
Practical Application ◽  
Metal Mesh ◽  
Frictional Materials ◽  
Nanofiber Membranes ◽  
Materials Used ◽  
Triboelectric Effect

Wearable electronics are believed to be the future of the next-generation electric devices. However, the comfort of current wearable devices is greatly limited due to the use of airtight materials, which may even lead to inflammation of the skin. Therefore, breathable, skin-friendly materials, are highly desired for wearable devices. Here, the recent progress of the breathable materials used to fabricate skin-friendly electronics is reviewed by taking triboelectric effect-based wearable electronics as a typical example. Fibers, yarns, textiles, and nanofiber membranes are the most popular dielectric materials that serve as frictional materials. Metal mesh, silver yarn, and conductive networks made up of nanomaterial are preferred as air-permissive electrodes. The breathable materials for skin-friendly wearable electronics summarized in this review provide valuable references for future fabrication of humanized wearable devices and hold great significance for the practical application of wearable devices.

Energy Harvesting With Piezoelectric Nanobrushes: Analysis and Design Principles

2009 ◽  
Author(s):  
Carmel Majidi ◽  
Mikko Haataja ◽  
David J. Srolovitz
Keyword(s):  
Energy Harvesting ◽  
Design Space ◽  
Electronic Devices ◽  
Wearable Electronics ◽  
Nanostructured Surface ◽  
Elastic Rod ◽  
Analysis And Design ◽  
Rod Theory ◽  
Piezoelectric Energy ◽  
Self Powered

The development of self-powered electronic devices is essential for emerging technologies such as wireless sensor networks, wearable electronics, and microrobotics. Of particular interest is the rapidly growing field of piezoelectric energy harvesting (PEH), in which mechanical strains are converted to electricity. Recently, PEH has been demonstrated by brushing an array of piezoelectric nanowires against a nanostructured surface. The piezoelectric nanobrush generator can be limited to sub-micron dimensions and thus allows for a vast reduction in the size of self-powered devices. Moreover, energy harvesting is controlled through contact between the nanowire tips and nanostructured surface, which broadens the design space to a wealth of innovations in tribology. Here we propose design criteria based on principles of contact mechanics, elastic rod theory, and continuum piezoelasticity.

scholarly journals Recent progresses on paper‐based triboelectric nanogenerator for portable self‐powered sensing systems

EcoMat ◽  
2020 ◽  
Vol 2 (4) ◽  
Author(s):  
Qian Tang ◽  
Hengyu Guo ◽  
Peng Yan ◽  
Chenguo Hu
Keyword(s):  
Triboelectric Nanogenerator ◽  
Sensing Systems ◽  
Self Powered
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