Superhydrophobic Water-Solid Contact Triboelectric Generator by Simple Spray-On Fabrication Method

Chung, Jihoon; Heo, Deokjae; Kim, Banseok; Lee, Sang‐Min

doi:10.3390/mi9110593

Cited by 33 publications

(21 citation statements)

References 21 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Spray-coating atomizes ink and coating the atomized droplets on the surface, both flat and curved ones, of an object at large scale with a spray gun. [298][299][300] Polymer, [298,[301][302][303][304] e.g., PMMA, N-Methyl-2-pyrrolidone (NMP), metallo-supramolecular polymers (MSP, e.g., Fe(II) and Ru(II) based MSPs), and conductive materials, [305][306][307][308][309] e.g., CNTs, silver nanowires (AgNWs), graphene etc. are common materials that can be fabricated into functional films through spray coating.…”

Section: Spray-coatingmentioning

confidence: 99%

Bio‐Derived Natural Materials Based Triboelectric Devices for Self‐Powered Ubiquitous Wearable and Implantable Intelligent Devices

Yang

Fan

2020

Advanced Sustainable Systems

View full text Add to dashboard Cite

The capability of devices in future ubiquitous networked wearable and implantable electronics to efficiently scavenge and store operational power from their working environment through sustainable pathways would enable viable self‐powering schemes in societally‐pervasive applications such as advanced healthcare and robotics. Triboelectric nanogenerators (TENGs) can efficiently harvest the ubiquitous mechanical energy for powering electronics and sensors. However, the majority of demonstrated TENG prototypes have been built with materials that are not biodegradable or biocompatible, which significantly hinders the application of TENGs for wearable and implantable technologies. In this review, the recent progress of the wearable and implantable triboelectric devices built with bio‐derived natural materials is summarized. The properties of these natural biopolymers are discussed in the context of self‐powered triboelectric applications. The common manufacturing methods for processing these materials into triboelectric devices are also discussed. In addition, the applications of the bio‐derived natural materials based TENGs for in vitro and in vivo applications are discussed. Finally, the outstanding challenges and potential opportunities for the development of bio‐derived natural materials based triboelectric devices targeting wearable and implantable human‐integrated applications are analyzed.

show abstract

Section: Spray-coatingmentioning

confidence: 99%

Bio‐Derived Natural Materials Based Triboelectric Devices for Self‐Powered Ubiquitous Wearable and Implantable Intelligent Devices

Yang

Fan

2020

Advanced Sustainable Systems

View full text Add to dashboard Cite

show abstract

“…The electrical output depends on the number of topcoats applied on the solid surface. The sprayed-on superhydrophobic surface produced an average positive peak V OC of 13.4 V and I CC of 2.1 µA under continuous water sprinkling from a commercial showerhead [ 17 ]. Jeong Hwan Lee et al reported the development of contact electrification-based water droplet-driven triboelectric nanogenerator for harvesting energy from the water-droplet bouncing between two superhydrophobic surfaces.…”

Section: Introductionmentioning

confidence: 99%

Triboelectric Energy Harvesting of the Superhydrophobic Coating from Dropping Water

Niu

Tian

et al. 2020

Polymers

View full text Add to dashboard Cite

In this paper, the superhydrophobic coating was prepared by spraying the composites of fluorocarbon emulsion and nanosized silica on the conductive glass sheet for the triboelectric energy harvesting from water droplets. The low surface energy of fluorine in the fluorocarbon emulsion and nanosilica renders the coating with the static contact angle and sliding angle of 156.2° and 6.74°, respectively. The conductive aluminum tape was attached on the surface of the superhydrophobic coating to complete the circuit constituted with the aluminum electrode, charged superhydrophobic coating, and the conductive glass sheet. During the contact electrification with the bouncing water droplet, the superhydrophobic coating with the aluminum electrode can obtain the electric energy with an open-circuit voltage of 20 V and short-circuit current of 4.5 μA, respectively. While the control device only produced an open-circuit voltage of 0.2 V. The generated power by one drop was enough to light up 16 commercial LEDs. Results demonstrate that the fluorocarbon/silica composite superhydrophobic coating is potentially a strong candidate for scavenging energy in sliding mode from raindrops.

show abstract

“…Both solid-solid and liquid-solid contact TENGs have distinct characteristics due to their different physical phases. Due to this difference, these two TENGs require different material properties; triboelectric materials in solid-solid TENGs require high mechanical properties for a long lifespan, and the surface of liquid-solid contact TENGs needs to be water repellent for constant liquid separation [28][29][30][31]. Previous studies have presented these TENGs as separate devices; therefore, the triboelectric surfaces of TENGs were developed separately as well.…”

Section: Introductionmentioning

confidence: 99%

Versatile surface for solid–solid/liquid–solid triboelectric nanogenerator based on fluorocarbon liquid infused surfaces

Chung

Cho

Yong

et al. 2020

Science and Technology of Advanced Materials

Self Cite

View full text Add to dashboard Cite

The triboelectric nanogenerator (TENG) is a recent mechanical energy harvesting technology that has been attracting significant attention. Its working principle involves the combination of triboelectrification and electrostatic induction. The TENG can harvest electrical energy from both solid-solid and liquid-solid contact TENGs. Due to their physical difference, triboelectric materials in the solid-solid TENG need to have high mechanical properties and the surface of the liquid-solid contact TENG should repel water. Therefore, the surface of the TENG must be versatile for applications in both solid-solid and liquid-solid contact environments. In this work, we develop a solidsolid/liquid-solid convertible TENG that has a slippery liquid-infused porous surface (SLIPS) at the top of the electrode. The SLIPS consists of a HDFS coated hierarchical Al(OH) 3 structure and fluorocarbon liquid. The convertible TENG developed in this study is capable of harvesting electricity from both solid-solid and liquid-solid contacts due to the high mechanical property of Al(OH) 3 and the water-based liquid repelling nature of the SLIPS. When the contact occurs in freestanding mode, electrical output was generated through solid-solid/liquid-solid sliding motions. The convertible TENG can harvest electricity from both solid-solid and liquid-solid contacts; thus, it can be a unified solution for TENG surface fabrication.

show abstract

Superhydrophobic Water-Solid Contact Triboelectric Generator by Simple Spray-On Fabrication Method

Cited by 33 publications

References 21 publications

Bio‐Derived Natural Materials Based Triboelectric Devices for Self‐Powered Ubiquitous Wearable and Implantable Intelligent Devices

Bio‐Derived Natural Materials Based Triboelectric Devices for Self‐Powered Ubiquitous Wearable and Implantable Intelligent Devices

Triboelectric Energy Harvesting of the Superhydrophobic Coating from Dropping Water

Versatile surface for solid–solid/liquid–solid triboelectric nanogenerator based on fluorocarbon liquid infused surfaces

Contact Info

Product

Resources

About