Piezoelectric Materials for Controlling Electro-Chemical Processes

Qian, Weiqi; Yang, Weiyou; Zhang, Yan; Bowen, Chris; Yang, Ya

doi:10.1007/s40820-020-00489-z

Cited by 103 publications

(64 citation statements)

References 243 publications

(576 reference statements)

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“…Developing fusion energy harvesters integrated with photovoltaic, pyroelectric, and piezoelectric effects have attracted great attention for multisource energy harvesting. [66][67][68] As noted above, ferroelectrics are referred to as a subclass of pyroelectric and piezoelectric materials. The usage of ferroelectric MAPbI 3 can be broadened as a fusion energy conversion material, owing to its promising virtues such as ambipolar nature, ferroelectricity, and ultra-high Seebeck coefficient.…”

Section: Hybrid Perovskite Pengsmentioning

confidence: 99%

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Recent advances in hybrid perovskite nanogenerators

Ding

Wong

Hao

2020

EcoMat

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Hybrid organic-inorganic halide perovskites have attracted massive attention during the last several years because of their promising properties for high-performance electronic and optoelectronic devices. The intriguing ferroic nature of hybrid perovskites, especially ferroelectric and piezoelectric properties, bring new opportunities for mechanical energy harvesting applications. They are also introduced as triboelectric materials coupling with their remarkable dielectric and electrical features. This mini review presents a concise overview of the recent progress on hybrid perovskite nanogenerators, including piezoelectric nanogenerators and triboelectric nanogenerators. Different dimensional perovskites with prominent ferroelectric and piezoelectric properties are discussed in detail. Lastly, we provide a brief outlook for the future development of self-powered wearable electronics based on hybrid perovskites.

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Section: Hybrid Perovskite Pengsmentioning

confidence: 99%

Section: Hybrid Perovskite Nanogeneratorsmentioning

confidence: 99%

Recent advances in hybrid perovskite nanogenerators

Ding

Wong

Hao

2020

EcoMat

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“…The latest technologies for collecting energy mainly include piezoelectricity [ 12 , 13 ], triboelectricity [ 14 – 17 ], pyroelectricity [ 18 ], photoelectricity [ 19 ], and electromagnetism [ 20 ]. Among these technologies, nanogenerator based on triboelectricity and piezoelectricity is considered to have excellent application prospects due to its high durability and mechanical stability, especially in the field of self-powered sensors [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Electrospinning of Flexible Poly(vinyl alcohol)/MXene Nanofiber-Based Humidity Sensor Self-Powered by Monolayer Molybdenum Diselenide Piezoelectric Nanogenerator

et al. 2021

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Two-dimensional material has been widely investigated for potential applications in sensor and flexible electronics. In this work, a self-powered flexible humidity sensing device based on poly(vinyl alcohol)/Ti3C2Tx (PVA/MXene) nanofibers film and monolayer molybdenum diselenide (MoSe2) piezoelectric nanogenerator (PENG) was reported for the first time. The monolayer MoSe2-based PENG was fabricated by atmospheric pressure chemical vapor deposition techniques, which can generate a peak output of 35 mV and a power density of 42 mW m−2. The flexible PENG integrated on polyethylene terephthalate (PET) substrate can harvest energy generated by different parts of human body and exhibit great application prospects in wearable devices. The electrospinned PVA/MXene nanofiber-based humidity sensor with flexible PET substrate under the driven of monolayer MoSe2 PENG, shows high response of ∼40, fast response/recovery time of 0.9/6.3 s, low hysteresis of 1.8% and excellent repeatability. The self-powered flexible humidity sensor yields the capability of detecting human skin moisture and ambient humidity. This work provides a pathway to explore the high-performance humidity sensor integrated with PENG for the self-powered flexible electronic devices.

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“…When the piezoelectric material is subjected to external stress or mechanical vibration, the ion displacement is induced, which leads to the change of unit cell dipole moment and produces net charge, thus forming piezoelectric potential on the material [16]. If the outer surface of the material is in contact with the dielectric at this time [17], the rearrangement of the charges will change the conductivity, which will strongly affect the electrochemical process [18]. The charge polarity on the surface of piezoelectric material will change with the direction of applied force.…”

Section: Introductionmentioning

confidence: 99%

Effect of Lead Zirconate Titanate Bimorph on Soil Microorganisms: A Preliminary Study

Fang

et al. 2021

Sustainability

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Lead zirconate titanate (PZT) has been widely used because of its electrochemical effect, but its effect on soil microorganisms is rarely studied. In this study, laboratory soil microcosms with different soil moisture content and pH were established to explore the effects of the PZT-5H bimorph with different quantities and states on soil microorganisms after 49 days. Plate counting was used to study the number changes of soil bacteria, fungi and actinomycetes. Isothermal microcalorimetry was used to evaluate microbial activity. High-throughput sequencing was used to analyze soil microbial diversity and community structure. The results showed that the number and activity of microorganisms could be significantly promoted by two vibrating PZT bimorphs under the appropriate soil moisture content (20%) and pH (7). At the same time, it promoted the growth of non- dominant microorganisms and increased the diversity of microorganisms. These results indicate that it is possible for PZT bimorphs to be used in soil field.

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Piezoelectric Materials for Controlling Electro-Chemical Processes

Cited by 103 publications

References 243 publications

Recent advances in hybrid perovskite nanogenerators

Recent advances in hybrid perovskite nanogenerators

Electrospinning of Flexible Poly(vinyl alcohol)/MXene Nanofiber-Based Humidity Sensor Self-Powered by Monolayer Molybdenum Diselenide Piezoelectric Nanogenerator

Effect of Lead Zirconate Titanate Bimorph on Soil Microorganisms: A Preliminary Study

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