A Flexible Lead‐Free BaTiO<sub>3</sub>/PDMS/C Composite Nanogenerator as a Piezoelectric Energy Harvester

Luo, Cheng; Hu, Sihuan; Xia, Mengjie; Li, Pengwei; Hu, Jie; Li, Gang; Jiang, Huabei; Zhang, Wendong

doi:10.1002/ente.201700756

Cited by 60 publications

(35 citation statements)

References 41 publications

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“…The maximum current density (CD) and power density (PD) values of 0.28 μA cm −2 and 1.74 μW cm −3 , respectively, were observed for the 10 wt % composite (Figure S32). The performance of the DPDP⋅PF 6 /PDMS system is fairly comparable to several composites derived from ferroelectric (organic–inorganic and inorganic) non‐piezoelectric polymer materials …”

Section: Figurementioning

confidence: 71%

A Flexible Composite Mechanical Energy Harvester from a Ferroelectric Organoamino Phosphonium Salt

et al. 2018

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A new binary organic salt diphenyl diisopropylamino phosphonium hexaflurophosphate (DPDP⋅PF ) was shown to exhibit a good ferroelectric response and employed for mechanical energy harvesting application. The phosphonium salt crystallizes in the monoclinic noncentrosymmetric space group Cc and exhibits an H-bonded 1D chain structure due to N-H⋅⋅⋅F interactions. Ferroelectric measurements on the single crystals of DPDP⋅PF gave a well-saturated rectangular hysteresis loop with a remnant (P ) polarization value of 6 μC cm . Further, composite devices based on polydimethylsiloxane (PDMS) films for various weight percentages (3, 5, 7, 10 and 20 wt %) of DPDP⋅PF were prepared and examined for power generation by using an impact test setup. A maximum output peak-to-peak voltage (V ) of 8.5 V and an output peak-to-peak current (I ) of 0.5 μA was obtained for the non-poled composite film with 10 wt % of DPDP⋅PF . These results show the efficacy of organic ferroelectric substances as potential micropower generators.

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Section: Figurementioning

confidence: 71%

A Flexible Composite Mechanical Energy Harvester from a Ferroelectric Organoamino Phosphonium Salt

et al. 2018

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“…Various non‐centrosymmetric piezoelectric materials such as lead zirconate titanate (PZT), [ 8–12 ] quartz, [ 13 ] zinc oxide (ZnO), [ 3,14–16 ] barium titanate (BaTiO 3 , BTO), [ 17–22 ] zinc sulfide (ZnS), [ 23–24 ] polyvinylidene fluoride (PVDF), [ 25,26 ] etc. are widely used for PENGs.…”

Section: Figurementioning

confidence: 99%

n‐ZnO/p‐NiO Core/Shell‐Structured Nanorods for Piezoelectric Nanogenerators

et al. 2020

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Recently, nanogenerators (NG) have attracted considerable attention due to the practical applications of converting mechanical energy to electrical energy from various sources. [1-5] Piezoelectric materials generate electricity by generating dielectric polarization when a physical force is applied. A piezoelectric nanogenerator (PENG) based on piezoelectric materials can convert various mechanical energy sources into electrical energy without generating contaminants, and they can be easily miniaturized and are light in weight, so they can be installed where vibration and pressure energy exist. [6,7] Various non-centrosymmetric piezoelectric materials such as lead zirconate titanate (PZT), [8-12] quartz, [13] zinc oxide (ZnO), [3,14-16] barium titanate (BaTiO 3 , BTO), [17-22] zinc sulfide (ZnS), [23-24] polyvinylidene fluoride (PVDF), [25,26] etc. are widely used for PENGs. Among them, wurtzite structured ZnO nanorods (NRs) have undergone numerous studies due to their unique features, such as their piezoelectricity, semiconducting property, transparency, biocompatibility, and low manufacturing cost. [3,13-16] ZnO NRs are an intrinsic n-type semiconductor due to native defects such as zinc (Zn) interstitials and oxygen (O) vacancies. Excessive free electrons from the defects in ZnO NRs limit their harvesting performance due to the screening of piezoelectric potential when mechanical stress is applied. To solve this issue, several approaches have been reported, for example, thermal annealing, [27] O 2 plasma treatment, [28,29] and p-type semiconducting layer coating [30,31] to reduce native defects or modulate carrier concentration. In a previous work, NiO was used as a p-type semiconductor in connection with doping materials research to enhance the output performance of ZnO-based PENGs. [30] The oxidation temperature of Ni for making NiO is very high, however, from 500 to 900 C, so there is a disadvantage in that its use on a

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“…However there are plenty of approaches toward enforcement of piezoelectric performance of perovskite, including poling in a strong electrical field [219]. As mentioned above, application of a highly piezoelectric junction, like a metal oxide wire [220], and combination with piezoelectric polymers such as PVDF (Polyvinylidene fluoride) [221,222] could be reasonable approaches. However, the latter approach seems to be associated with technical challenges.…”

Section: Perovskite Fiber-shaped Integrated Energy Harvesting Systemsmentioning

confidence: 99%

Perovskite Solar Fibers: Current Status, Issues and Challenges

Balilonda

Tebyetekerwa

et al. 2019

Adv. Fiber Mater.

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Perovskite-based solar cells with high power conversion efficiencies (PCEs) are currently being demonstrated in solid-state device designs. Their elevated performances can possibly be attained with different non-standard geometries, for example, the fiber-shaped perovskite solar cells, in the light of careful design and engineering. Fiber-shaped solar cells are promising in smart textiles energy harvesting towards next-generation electronic applications and devices. They can be made with facile process and at low cost. Recently, fiber-shaped perovskite solar devices have been reported, particularly with the focus on the proof-of-concept in such non-traditional architectures. In this line, there are so many technical aspects which need to be addressed, if these photovoltaic (PV) cells are to be industrialized and produced massively. Herein, a well-organized and comprehensive discussion about the reported devices in this arena is presented. The challenges that need to be addressed, the possible solutions and the probable applications of these PV cells are also discussed. More still, the perovskite fiber-shaped PV cells with other fiber PV devices reported in literature in terms of their scope, characteristic designs, performances, and other technical considerations have been summarised.

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A Flexible Lead‐Free BaTiO₃/PDMS/C Composite Nanogenerator as a Piezoelectric Energy Harvester

Cited by 60 publications

References 41 publications

A Flexible Composite Mechanical Energy Harvester from a Ferroelectric Organoamino Phosphonium Salt

A Flexible Composite Mechanical Energy Harvester from a Ferroelectric Organoamino Phosphonium Salt

n‐ZnO/p‐NiO Core/Shell‐Structured Nanorods for Piezoelectric Nanogenerators

Perovskite Solar Fibers: Current Status, Issues and Challenges

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A Flexible Lead‐Free BaTiO3/PDMS/C Composite Nanogenerator as a Piezoelectric Energy Harvester

Cited by 60 publications

References 41 publications

A Flexible Composite Mechanical Energy Harvester from a Ferroelectric Organoamino Phosphonium Salt

A Flexible Composite Mechanical Energy Harvester from a Ferroelectric Organoamino Phosphonium Salt

n‐ZnO/p‐NiO Core/Shell‐Structured Nanorods for Piezoelectric Nanogenerators

Perovskite Solar Fibers: Current Status, Issues and Challenges

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A Flexible Lead‐Free BaTiO₃/PDMS/C Composite Nanogenerator as a Piezoelectric Energy Harvester