KNN based piezo-triboelectric lead-free hybrid energy films

Abdullah, Abu Musa; Sadaf, Muhtasim Ul Karim; Tasnim, Farzana; Vasquez, Horacio; Lozano, Karen; Uddin, M. Jasim

doi:10.1016/j.nanoen.2021.106133

Cited by 61 publications

(21 citation statements)

References 93 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To produce the triboelectric effect, the TENG requires periodic vertical contact and separation, and this mechanism is imperative to the vertical contact–separation-based TENG. Owing to this continuous contact and separation, a static charge is formed on the surface of the triboelectric layers, and to maximize this charge generation, spacers are employed between the tribo layers, which makes the mechanism more convenient. , Otherwise, there is a chance of the triboelectric fiber layers to stick together during contact and separation, which might result in a lower power output. For simplicity, the spacer and PLA layers are not shown in the mechanism.…”

Section: Results and Discussionmentioning

confidence: 99%

“…For simplicity, the spacer and PLA layers are not shown in the mechanism. Usually, a vertical contact–separation-based TENG requires two electrification layers, and initially, these two layers are in the contact mode (Figure S3a) with no current flow. , However, as the two layers are periodically pressed (come into contact and then separated) (Figure S3b), the difference in electronegativity between both layers results in charge ejection from the TPU/Au layer to the PVDF nanofiber layer . The ejected electrons then resulted in net negative charges in the PVDF layer .…”

Section: Results and Discussionmentioning

confidence: 99%

“…Wang et al also provided a wide list of triboelectric materials and suggested their effective pairing; this came along with some important theoretical suggestions, which has helped in understanding different modes of triboelectric operation . Currently, TENGs are being highly exploited as energy harvesters and self-powered sensors . There are different working modes of TENG like a single-electrode mode, free-standing mode, sliding mode, and contact–separation mode.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nanofiber-Based Substrate for a Triboelectric Nanogenerator: High-Performance Flexible Energy Fiber Mats

Abir

Sadaf

Saha

et al. 2021

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Flexible and stretchable triboelectric nanogenerators (TENGs) are the next-generation systems for wearable and portable electronics. In this study, we have demonstrated an all nanofiber-based TENG for energy harvesting and biomechanical sensing applications. The TENG was prepared using the Forcespinning (FS) method to produce poly(vinylidene fluoride) (PVDF) and thermoplastic polyurethane (TPU) nanofiber (NF) membranes. The TPU nanofiber membranes were interfaced with a homogeneously sputtered gold nanofilm. The experimental characterization of the PVDF-TPU/Au NF-TENG revealed that surface interfaced with dispersed gold in a TPU fiber membrane produced a maximum open-circuit voltage of 254 V and a short-circuit current of 86 μA output at a 240 bpm load frequency, which was, respectively, 112 and 87% greater than bare PVDF-TPU NF-based TENG. All systems were composed of an active contact surface area of 3.2 × 2.5 cm2. Furthermore, the TENG was able to light up 75 LEDs (1.5 V of each) by the hand-tapping motion. The resistive load and capacitor test results exemplified a TENG offering a simple and high-performance self-chargeable device. Furthermore, we have tested the TENG’s response for biomechanical movements at different frequencies, suggesting the TENG’s potential to be also used as a cost-effective self-powered flexible body motion sensor.

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nanofiber-Based Substrate for a Triboelectric Nanogenerator: High-Performance Flexible Energy Fiber Mats

Abir

Sadaf

Saha

et al. 2021

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

show abstract

“…Triboelectricity has been widely used for diverse engineering applications like mechanical energy harvesting and sensing applications. [15][16][17][18] Particularly, triboelectric nanogenerator has been an emerging technology for motion sensing and pressure sensing applications. [3,7,19] This research focuses on a DOI: 10.1002/ente.202100662…”

Section: Introductionmentioning

confidence: 99%

“…Triboelectricity has been widely used for diverse engineering applications like mechanical energy harvesting and sensing applications. [ 15–18 ] Particularly, triboelectric nanogenerator has been an emerging technology for motion sensing and pressure sensing applications. [ 3,7,19 ] This research focuses on a triboelectricity‐based device that is able to create an identical output signal with motion which is determined by the size and distance of the foreign object with respect to the device.…”

Section: Introductionmentioning

confidence: 99%

Flexible Bielectrode‐Based Highly Sensitive Triboelectric Motion Sensor: A Sustainable and Smart Electronic Material

et al. 2022

Self Cite

View full text Add to dashboard Cite

The self‐powered and autonomous sensors are incredibly important in advanced engineering, especially defence science. The increasing necessity of simple and smart electronics requires to be sustainably flexible, wearable, and waterproof. Triboelectricity has been a widely used mechanism for motion sensing nowadays. Almost all devices based on triboelectricity require contact between two surfaces. Herein, a touchless triboelectric motion sensor for human motion sensing and movement monitoring is developed. The device was primarily fabricated using simple latex (cis‐1,4‐polyisoprene) structures and copper (electrode materials), which make it a very cost‐effective device for sensory applications. The device is tested with specimens of different areas and heights in motion. The maximum output of the device is noted as 12 V at a specimen height of 5 cm. Further different types of human motions are applied in front of the device to ensure low energy sensitivity using triboelectric phenomena. The lightweight smart device precisely provides significant output signals for each movement of the human body which makes the device a prospective medium for motion sensing and movement monitoring which can be applied in the fields of security, energy, and medicine.

show abstract

Ferroelectric Nanomaterials for Energy Harvesting and Self‐Powered Sensing Applications

Yu,

Ji,

Zhang

et al. 2024

Advanced Sensor Research

View full text Add to dashboard Cite

The rapid development of the Internet of Things has introduced new challenges for miniaturized, highly integrated energy harvesters and sensors, promoting the exploration of various novel nanomaterials. Ferroelectric nanomaterials, characterized by large remanent polarization, exceptional dielectric properties, outstanding chemical stability, and diverse electricity generation capabilities, are emerging as promising candidates in a variety of fields. Possessing various mechanisms for electricity generation, including piezoelectric, pyroelectric, photovoltaic, and triboelectric effects, ferroelectric nanomaterials demonstrate their capability for harvesting and sensing multiple energies simultaneously, including light, thermal, and mechanical energies. This capability contributes to the miniaturization and high integration of electronic devices. This article reviews recent achievements in ferroelectric nanomaterials and their applications in energy harvesting and self‐powered sensing. Different categories of ferroelectric nanomaterials, their ferroelectric properties, and fabrication methods are introduced. The working mechanisms and performance of ferroelectric energy harvesters and self‐powered sensors are described. Additionally, future prospects are discussed.

show abstract

KNN based piezo-triboelectric lead-free hybrid energy films

Cited by 61 publications

References 93 publications

Nanofiber-Based Substrate for a Triboelectric Nanogenerator: High-Performance Flexible Energy Fiber Mats

Nanofiber-Based Substrate for a Triboelectric Nanogenerator: High-Performance Flexible Energy Fiber Mats

Flexible Bielectrode‐Based Highly Sensitive Triboelectric Motion Sensor: A Sustainable and Smart Electronic Material

Ferroelectric Nanomaterials for Energy Harvesting and Self‐Powered Sensing Applications

Contact Info

Product

Resources

About