A durable and stable piezoelectric nanogenerator with nanocomposite nanofibers embedded in an elastomer under high loading for a self-powered sensor system

Siddiqui, Saqib; Kim, Do‐Il; Roh, Eun; Duy, Le Thai; Trung, Tran Quang; Nguyen, Minh Hoang; Lee, Nae‐Eung

doi:10.1016/j.nanoen.2016.10.034

Cited by 139 publications

(91 citation statements)

References 45 publications

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“…Figure S9 (Supporting Information) shows the fourier transform infrared spectroscopy (FTIR) spectrum and XRD results of P(VDF‐TrFE) matrix, which indicated that the flexible P(VDF‐TrFE) matrix has a high β phase crystallinity. According to the research of Lee et al, the crystalline‐phase P(VDF‐TrFE) also exhibits positive piezoelectricity, which transfers the energy of the applied pressure efficiently and also contributes piezoelectricity to enhance the output. Upon the application of stress, the piezoelectric potential is generated simultaneously inside the uniformly dispersed BT NPs and the crystalline P(VDF‐TrFE), which will produce a coupled giant piezoelectricity.…”

Section: Resultsmentioning

confidence: 99%

High‐Performance Piezoelectric Nanogenerators with Imprinted P(VDF‐TrFE)/BaTiO₃ Nanocomposite Micropillars for Self‐Powered Flexible Sensors

Chen

Shao

et al. 2017

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Piezoelectric nanogenerators with large output, high sensitivity, and good flexibility have attracted extensive interest in wearable electronics and personal healthcare. In this paper, the authors propose a high-performance flexible piezoelectric nanogenerator based on piezoelectrically enhanced nanocomposite micropillar array of polyvinylidene fluoride-trifluoroethylene (P(VDF-TrFE))/barium titanate (BaTiO ) for energy harvesting and highly sensitive self-powered sensing. By a reliable and scalable nanoimprinting process, the piezoelectrically enhanced vertically aligned P(VDF-TrFE)/BaTiO nanocomposite micropillar arrays are fabricated. The piezoelectric device exhibits enhanced voltage of 13.2 V and a current density of 0.33 µA cm , which an enhancement by a factor of 7.3 relatives to the pristine P(VDF-TrFE) bulk film. The mechanisms of high performance are mainly attributed to the enhanced piezoelectricity of the P(VDF-TrFE)/BaTiO nanocomposite materials and the improved mechanical flexibility of the micropillar array. Under mechanical impact, stable electricity is stably generated from the nanogenerator and used to drive various electronic devices to work continuously, implying its significance in the field of consumer electronic devices. Furthermore, it can be applied as self-powered flexible sensor work in a noncontact mode for detecting air pressure and wearable sensors for detecting some human vital signs including different modes of breath and heartbeat pulse, which shows its potential applications in flexible electronics and medical sciences.

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Section: Resultsmentioning

confidence: 99%

High‐Performance Piezoelectric Nanogenerators with Imprinted P(VDF‐TrFE)/BaTiO₃ Nanocomposite Micropillars for Self‐Powered Flexible Sensors

Chen

Shao

et al. 2017

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346

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“…The device can detect a larger strain range (up to 35%) with a high GF(>20). [91,94,139,140] Piezoelectric strain sensors have the advantages of larger sensing range, fast response time, highly sensitivity to dynamic mechanical stimuli, and are typically selfpowered. [138] In another approach, capacitive strain sensors with interdigitated structure electrodes exhibited better linearity sensitivity and lower hysteresis than capacitive sensors with parallel-plate structure.…”

Section: Wwwadvmatde Wwwadvancedsciencenewscommentioning

confidence: 99%

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

et al. 2018

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Powered by market hype, trends among youth, and enormous funds, wearable technology has propelled itself as one of the most discussed topics in the field during past few years. A number of different companies representing all throughout the world have already entered into the market with hundreds of different products like smart watches, fitness trackers, smart garments, and even different smart medical attachments.Together with the evolution of digital health care, the wearable electronics field has evolved rapidly during the past few years and is expected to be expanded even further within the first few years of the next decade. As the next stage of wearables is predicted to move toward integrated wearables, nanomaterials and nanocomposites are in the spotlight of the search for novel concepts for integration. In addition, the conversion of current devices and attachment-based wearables into integrated technology may involve a significant size reduction while retaining their functional capabilities. Nanomaterialbased wearable sensors have already marked their presence with a significant distinction while nanomaterial-based wearable actuators are still at their embryonic stage. This review looks into the contribution of nanomaterials and nanocomposites to wearable technology with a focus on wearable sensors and actuators.

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“…The unique energy transduction of piezoelectric materials enables their applications in fields of energy harvesting, actuators,21 sensors,22 structural health monitoring, and use in biomedical devices 23. Numerous approaches have been used to fabricate piezoelectric generators, such as coating,24 spinning,25 depositing,26 and printing 27…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, several research groups have introduced some structural strategies for piezoelectric polymer design to enhance the piezoelectric efficiency by incorporating inorganic piezoelectric nanostructures as an effective piezoelectron pathway 47. Using this strategy, the voltage and current outputs of the P(VDF‐TrFE) nanofibers could be enhanced up to 200% by adding BT nanoparticles into the polymer matrix 25. It was also reported that flexible piezoelectric energy generators based on PVDF‐HFP/BT composite film exhibited high electrical output up to ≈75 V and ≈15 µA 47.…”

Section: Introductionmentioning

confidence: 99%

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Mokhtari

Spinks

Fay

et al. 2020

Adv Materials Technologies

119

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to produce a new generation of smart garments.Such affordable smart garments could fulfil diverse applications, ranging from work wear in specific industries to the almost infinite scenarios of personal use including energy harvesting/storage, force/pressure measurement, porosity or color variation, and sensors (movement, temperature, chemicals). [1][2][3][4][5][6][7] However, performance, scalability, and cost problems have restricted the deployment of currently available smart textiles. To build smart textiles on an industrial scale, method of manufacturing and material selection are two important requirements. The approach of new energy materials and novel fabrication methods are essential to develop wearable technologies. Wearable energy generating devices that can be seamlessly integrated into garments are a critical component of the wearable electronics genre. Currently flexible fiber energy harvesters have attracted significant attention due to their ability to be integrated into fabrics, or stitched into existing textiles. Large-scale production of energy harvester fibers using conventional manufacturing processes, however, is still a challenge.Energy harvesting from environmental mechanical sources such as body movements including finger imparting, [8] pushing, [9] stretching, [10] bending, [11] twisting, [12] air flow, [13] transportation movement, [14] and sound waves [15] has attracted widespread attention to promote flexible self-powered devices. [16] The best common mechanical energy harvesting methods are based on piezoelectric materials. [17] Piezoelectric materials can be classified in three categories: piezoelectric ceramics, piezoelectric polymers, and piezoelectric composites. [18] Unlike the energy harvesters utilizing solar or thermal energy, performance of piezoelectric generators is generally not limited by environmental factors. [19] Piezoelectric generators have received massive interest in energy harvesting technology due to their unique ability to capture the ambient vibrations to generate electric signals. [20] The unique energy transduction of piezoelectric materials enables their applications in fields of energy harvesting, actuators, [21] sensors, [22] structural health monitoring, and use in biomedical devices. [23] Numerous approaches have been used to fabricate piezoelectric generators, such as coating, [24] spinning, [25] depositing, [26] and printing. [27] Wearable energy harvesting is of practical interest for many years and for diverse applications, including development of self-powered wireless sensors within garments for human health monitoring. Herein, a novel approach is reported to create wearable energy generators and sensors using nanostructured hybrid piezoelectric fibers and exploiting the enormous variety of textile architectures. It is found that high performance hybrid piezofiber is obtained using a barium titanate (BT) nanoparticle and poly(vinylidene fluoride) (PVDF) with a mass ratio of 1:10. These fibers are knitted to form a wearable energy generator that pr...

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A durable and stable piezoelectric nanogenerator with nanocomposite nanofibers embedded in an elastomer under high loading for a self-powered sensor system

Cited by 139 publications

References 45 publications

High‐Performance Piezoelectric Nanogenerators with Imprinted P(VDF‐TrFE)/BaTiO₃ Nanocomposite Micropillars for Self‐Powered Flexible Sensors

High‐Performance Piezoelectric Nanogenerators with Imprinted P(VDF‐TrFE)/BaTiO₃ Nanocomposite Micropillars for Self‐Powered Flexible Sensors

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

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A durable and stable piezoelectric nanogenerator with nanocomposite nanofibers embedded in an elastomer under high loading for a self-powered sensor system

Cited by 139 publications

References 45 publications

High‐Performance Piezoelectric Nanogenerators with Imprinted P(VDF‐TrFE)/BaTiO3 Nanocomposite Micropillars for Self‐Powered Flexible Sensors

High‐Performance Piezoelectric Nanogenerators with Imprinted P(VDF‐TrFE)/BaTiO3 Nanocomposite Micropillars for Self‐Powered Flexible Sensors

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

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Product

Resources

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High‐Performance Piezoelectric Nanogenerators with Imprinted P(VDF‐TrFE)/BaTiO₃ Nanocomposite Micropillars for Self‐Powered Flexible Sensors

High‐Performance Piezoelectric Nanogenerators with Imprinted P(VDF‐TrFE)/BaTiO₃ Nanocomposite Micropillars for Self‐Powered Flexible Sensors