Enhanced output-power of nanogenerator by modifying PDMS film with lateral ZnO nanotubes and Ag nanowires

Yue, Xule; Xi, Yunfei; Hu, Chenguo; He, Xianming; Dai, Shuge; Cheng, Lei; Guo, Wang

doi:10.1039/c5ra02098k

Cited by 25 publications

(14 citation statements)

References 24 publications

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“…This can result in poor output performance for devices because of the low fill ratio. Finally, it has been reported that the interface between the electrode layer and piezoelectric layer of a piezoelectric device produces interfacial debonding extremely easily [ 30 , 31 , 32 ]. This results in a failed whole device and greatly affects the charge transport capability and reliability of the device under the multiple motions of stretching and releasing.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition

Xian

et al. 2022

Nanomaterials

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The flexible pressure sensor has attracted much attention due to its wearable and conformal advantage. All the same, enhancing its electrical and structural properties is still a huge challenge. Herein, a flexible integrated pressure sensor (FIPS) composed of a solid silicone rubber matrix, composited with piezoelectric powers of polyacrylonitrile/Polyvinylidene fluoride (PAN/PVDF) and conductive silver-coated glass microspheres is first proposed. Specifically, the mass ratio of the PAN/PVDF and the rubber is up to 4:5 after mechanical mixing. The output voltage of the sensor with composite PAN/PVDF reaches 49 V, which is 2.57 and 3.06 times that with the single components, PAN and PVDF, respectively. In the range from 0 to 800 kPa, its linearity of voltage and current are all close to 0.986. Meanwhile, the sensor retains high voltage and current sensitivities of 42 mV/kPa and 0.174 nA/kPa, respectively. Furthermore, the minimum response time is 43 ms at a frequency range of 1–2.5 Hz in different postures, and the stability is verified over 10,000 cycles. In practical measurements, the designed FIPS showed excellent recognition abilities for various gaits and different bending degrees of fingers. This work provides a novel strategy to improve the flexible pressure sensor, and demonstrates an attractive potential in terms of human health and motion monitoring.

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Section: Introductionmentioning

confidence: 99%

Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition

Xian

et al. 2022

Nanomaterials

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“…A series of ZnO based NGs on different substrates such as sapphire, ITO and fibers were raised. [14][15][16][17][18][19][20][21][22] According to the previous reports, 23 there are two mainly methods. Various approaches have been developed for converting these mechanical energy into electric energy with ZnO based NG.…”

Section: Introductionmentioning

confidence: 99%

“…[11][12][13] In recent years, remarkable efforts have also been invested in enhancing the performance of ZnO-based NGs. [14][15][16][17][18][19][20][21][22] According to previous reports, 23 there are two main methods. One involves increasing the number of effective nanorods; the other involves reducing the number of excess electrons to reduce the screening effects on piezoelectric charge.…”

Section: Introductionmentioning

confidence: 99%

Flexible piezoelectric nanogenerator based on Cu₂O–ZnO p–n junction for energy harvesting

et al. 2015

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In this paper, a nanogenerator based on Cu 2 O-ZnO p-n junction has been fabricated on Cu wire substrates for harvesting mechanical energy from environment.The flexible nanogenerator is composed of Cu substrate, Cu 2 O layer, ZnO nanorods and the outer Au coated paper electrode, the Cu 2 O layer was obtained by oxidizing Cu wires directly and the ZnO nanoroads is grown on Cu 2 O layer using a low-temperature hydrothermal method. The existence of Cu 2 O-ZnO p-n junction makes a contribution to reduce the excess electrons in the ZnO, which conduces to improve the output signal and also overcomes the short circuit. Au coated paper electrode can make more nanorods involved in the power generation process. The DC output voltage was up to 42 mV and the maximum output current density was of 400 nA, which is approximately 13-fold higher voltage and one order of magnitude larger current by comparison to the devices without Cu 2 O layer. This work may provide important insight into the facile fabrication method for low-cost and high-performance energy harvesting devices.

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“…34. As the NWs can be utilized to fabricate a flexible, wearable, or implantable energy harvesting device because of high sensitivity to small, irregular mechanical disturbances [105,106], meanwhile, this material can also be combined with polymer to desire a feasible NG, which is potential material in the application of implantable self-powered device in the medical area. Wang et al [107] fabricated an active or self-powered sensor (total thickness ≈ 16 μm) to monitor sleeping behavior, brain activities, and spirit status of a person as well as any biologically associated skin deformation, as the high sensitivity of super-flexible nanowire ZnO NG enabled to measure a slight local deformation on one's eyelid caused by the motion of eye ball underneath, as shown in Fig.…”

Section: Non-ferroelectric Materialsmentioning

confidence: 99%

Recent progress on piezoelectric energy harvesting: structures and materials

Jia-dong

Liu

et al. 2018

Adv Compos Hybrid Mater

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With the rapid development of advanced technology, piezoelectric energy harvesting (PEH) with the advantage of simple structure, polluted relatively free, easily minimization, and integration has been used to collect the extensive mechanical energy in our living environment holding great promise to power the self-sustainable system and portable electronics. In this paper, attempts have been made to review the progress of piezoelectric materials and devices used for energy harvesting. The review focused on three parts: structure of piezoelectric devices (cantilever, cymbal, and stacks); theoretical mode, including vibration mode (d 31 and d 33 ) and its responding theories of different devices; and piezoelectric materials, among which the electric performance of Pb(ZrTi)O 3 -based, lead-free-based, and composites applied in bulk/micro/nano-PEH devices were introduced in details. It is suggested that a new structure of PEH should be designed by combining advantages of cantilever, stacks, and cymbal structure. Besides, high d 33 × g 33 value and low ε of piezoelectric materials are required in order to generate high electric output power for bulk/micro/nano-PEH. Additionally, lead-free piezoelectric ceramics is a candidate for manufacturing PEH devices, and nano-composite materials should be developed to further improve the flexibility of piezoelectric materials.

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Enhanced output-power of nanogenerator by modifying PDMS film with lateral ZnO nanotubes and Ag nanowires

Abstract: Design of hybrid nanogenerator that can simultaneously light up 99 commercial blue LEDs connected in series. Additionally, by placing a hand on the nanogenerator the maximum peak current could reach 115 μA.

Cited by 25 publications

References 24 publications

Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition

Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition

Flexible piezoelectric nanogenerator based on Cu₂O–ZnO p–n junction for energy harvesting

Recent progress on piezoelectric energy harvesting: structures and materials

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Enhanced output-power of nanogenerator by modifying PDMS film with lateral ZnO nanotubes and Ag nanowires

Abstract: Design of hybrid nanogenerator that can simultaneously light up 99 commercial blue LEDs connected in series. Additionally, by placing a hand on the nanogenerator the maximum peak current could reach 115 μA.

Cited by 25 publications

References 24 publications

Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition

Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition

Flexible piezoelectric nanogenerator based on Cu2O–ZnO p–n junction for energy harvesting

Recent progress on piezoelectric energy harvesting: structures and materials

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Flexible piezoelectric nanogenerator based on Cu₂O–ZnO p–n junction for energy harvesting