Highly Stretchable Piezoelectric‐Pyroelectric Hybrid Nanogenerator

Lee, Ju‐Hyuck; Lee, Keun Young; Gupta, Manoj; Kim, Tae Yun; Lee, Dae Yeong; Oh, Junho; Ryu, Changkook; Yoo, Won Jong; Kang, Chong Yun; Yoon, Seok Jin; Yoo, Ji Beom; Kim, Sang Woo

doi:10.1002/adma.201303570

Cited by 502 publications

(318 citation statements)

References 32 publications

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“…Despite significant advances in enhancement of overall power output, complex device structure limits the interaction of various effects since the generated electricity is separately exported through distinct electrodes. Recently, very few reports have demonstrated the design of one‐structure‐based hybridized device with only a pair of electrodes,14, 15, 16 which is highly desirable for achieving synergetic promotion and represents a new trend of all‐in‐one multiple energy scavenging. The core of such device is multifunctional material beneficial for combining multieffects within one single device.…”

mentioning

confidence: 99%

A One‐Structure‐Based Multieffects Coupled Nanogenerator for Simultaneously Scavenging Thermal, Solar, and Mechanical Energies

Zhang

Yang

2017

Advanced Science

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Rapid advances in various energy harvesters impose the challenge on integrating them into one device structure with synergetic effects for full use of the available energies from the environment. Here, a multieffect coupled nanogenerator based on ferroelectric barium titanate is reported. It promotes the ability to simultaneously scavenging thermal, solar, and mechanical energies. By integration of a pyroelectric nanogenerator, a photovoltaic cell, and a triboelectric–piezoelectric nanogenerator in one structure with only two electrodes, multieffects interact with each other to alter the electric output, and a complementary power source with peak current of ≈1.5 µA, peak voltage of ≈7 V, and platform voltage of ≈6 V is successfully achieved. Compared with traditional hybridized nanogenerators with stacked architectures, the one‐structure‐based multieffects coupled nanogenerator is smaller, simpler, and less costly, showing prospective in practical applications and represents a new trend of all‐in‐one multiple energy scavenging.

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confidence: 99%

A One‐Structure‐Based Multieffects Coupled Nanogenerator for Simultaneously Scavenging Thermal, Solar, and Mechanical Energies

Zhang

Yang

2017

Advanced Science

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“…The flexibility and bio-compatibility of the PDMS substrate make the energy harvester attractive for usage in implantable or wearable devices, i.e., monitoring and tracking intrinsic (such as muscle fatigue) and extrinsic (such as twisting and bending of limbs) human parameters as part of biomedical applications, and smart monitoring systems including temperature sensors or low power microprocessors. Lee et al [19] fabricated a nanogenerator (NG) using P(VDF-TrFE) film (active material, 7 µm) and a patterned PDMS-CNT composite as the bottom electrode, demonstrating maximum output voltage and current of 1.4 V and 150 nA, respectively. Wang et al [20] developed patterned PDMS-MWCNT composite-based P(VDF-TrFE) (active material, 85 µm) hybrid energy harvester, and demonstrated piezoelectric output voltage and current of 2.5 V and 2.5 µA, respectively.…”

Section: Introductionmentioning

confidence: 99%

P(VDF-TrFE) Film on PDMS Substrate for Energy Harvesting Applications

et al. 2018

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Abstract:We have developed and demonstrated a highly flexible P(VDF-TrFE) film-based energy harvesting device on a PDMS substrate, avoiding any complex composites and patterned structures. The structural and electrical properties of the P(VDF-TrFE) film was investigated using multiple characterization techniques and an optimized film of 7 µm thickness was used for the energy harvesting application. The device, with Ti/Ni metal contacts, was driven by a shaker providing an acceleration of 1.75 g, and frequencies varying from 5 to 30 Hz. The energy harvesting performance of the final fabricated device was tested using the shaker, and resulted in a maximum output capacitor voltage of 4.4 V, which successfully powered a set of 27 LEDs after several minutes of charging.

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“…Stretchable electrodes have been extensively developed using nanomaterials (e.g., metal nanowires (NWs), nanoparticles (NPs), carbon nanotubes (CNTs), and 2D materials), and geometrical engineering processes (e.g., buckled, serpentine, and net formations) 1, 2, 3, 8, 10, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26. However, structurally designed conductors face challenges with regard to wider applications due to their complicated encapsulation and transfer process, large interconnection area, and limited stretching directions 27, 28.…”

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confidence: 99%

Flash‐Induced Stretchable Cu Conductor via Multiscale‐Interfacial Couplings

et al. 2018

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Herein, a novel stretchable Cu conductor with excellent conductivity and stretchability is reported via the flash‐induced multiscale tuning of Cu and an elastomer interface. Microscale randomly wrinkled Cu (amplitude of ≈5 µm and wavelength of ≈45 µm) is formed on a polymer substrate through a single pulse of a millisecond flash light, enabling the elongation of Cu to exceed 20% regardless of the stretching direction. The nanoscale interlocked interface between the Cu nanoparticles (NPs) and the elastomer increases the adhesion force of Cu, which contributes to a significant improvement of the Cu stability and stretchability under harsh yielding stress. Simultaneously, the flash‐induced photoreduction of CuO NPs and subsequent Cu NP welding lead to outstanding conductivity (≈37 kS cm−1) of the buckled elastic electrode. The 3D structure of randomly wrinkled Cu is modeled by finite element analysis simulations to show that the flash‐activated stretchable Cu conductors can endure strain over 20% in all directions. Finally, the wrinkled Cu is utilized for wireless near‐field communication on the skin of human wrist.

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Highly Stretchable Piezoelectric‐Pyroelectric Hybrid Nanogenerator

Cited by 502 publications

References 32 publications

A One‐Structure‐Based Multieffects Coupled Nanogenerator for Simultaneously Scavenging Thermal, Solar, and Mechanical Energies

A One‐Structure‐Based Multieffects Coupled Nanogenerator for Simultaneously Scavenging Thermal, Solar, and Mechanical Energies

P(VDF-TrFE) Film on PDMS Substrate for Energy Harvesting Applications

Flash‐Induced Stretchable Cu Conductor via Multiscale‐Interfacial Couplings

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