On the evaluation of output voltages for quantifying the performance of pyroelectric energy harvesters

Li, Qinlan; Li, Shuang; Pisignano, Dario; Persano, Luana; Yang, Ya; Su, Yewang

doi:10.1016/j.nanoen.2021.106045

Cited by 18 publications

(9 citation statements)

References 37 publications

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“…The carbon paste replaced the ethyl α‐cyanoacrylate glue to connect the electrodes and hybrid sponge when carrying out the mechanical force tests with large deformation such as bending, stretching, and twisting. The regular electric signals were read out by the assembled testing circuit system, which consisted of a high resistance meter (Keithley, 6517B with an internal resistance of 200 TΩ and a sampling rate of 50, Figure S12, Supporting Information) [ 51 ] and a data acquisition system set up based on LabVIEW simulation model. The different objects including iron pillar (27 g), peanut (1.1 g), soybean (0.22 g), red bean (0.12 g), rice (0.024 g), and millet (0.0068 g) were used to verify the broad stress detection range by dropping them from a height of ~10 mm to upper surface of the hybrid sensors.…”

Section: Methodsmentioning

confidence: 99%

Molecular Ferroelectric‐Based Flexible Sensors Exhibiting Supersensitivity and Multimodal Capability for Detection

Zhang

et al. 2021

Advanced Materials

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Although ferroelectricity was discovered in molecular materials (Rochelle salt, KNaC 4 H 4 O 6 ⋅4H 2 O) in 1920, [5] the field has been long dominated by perovskite oxides represented by barium titanate (BTO) and lead zirconate titanate (PZT) and synthetic polymers including poly(vinylidene fluoride) and polyamides, which have led to a wide range of industrial applications such as film capacitors, transducers, actuators, sensors, and memories. [6][7][8][9][10][11][12] The research activities on molecular ferroelectrics are being rejuvenated owing to the most recent breakthroughs such as the discovery of the molecular crystals with large spontaneous polarization (e.g., P S = 22 µC cm -2 ) close to that of BTO (P S = 26 µC cm -2 ) and higher transition temperatures than that of BTO (e.g., T 0 = 448 K vs 390 K), [13] the ultrafast polarization switching in thin films based on biaxial molecular ferroelectrics, [14] and the pyroelectric figures-of-merit outperforming the current ferroelectric Although excellent dielectric, piezoelectric, and pyroelectric properties matched with or even surpassing those of ferroelectric ceramics have been recently discovered in molecular ferroelectrics, their successful applications in devices are scarce. The fracture proneness of molecular ferroelectrics under mechanical loading precludes their applications as flexible sensors in bulk crystalline form. Here, self-powered flexible mechanical sensors prepared from the facile deposition of molecular ferroelectric [C(NH 2 ) 3 ]ClO 4 onto a porous polyurethane (PU) matrix are reported. [C(NH 2 ) 3 ]ClO 4 -PU is capable of detecting pressure of 3 Pa and strain of 1% that are hardly accessible by the state-of-the-art piezoelectric, triboelectric, and piezoresistive sensors, and presents the ability of sensing multimodal mechanical forces including compression, stretching, bending, shearing, and twisting with high cyclic stability. This scaling analysis corroborated with computational modeling provides detailed insights into the electro-mechanical coupling and establishes rules of engineering design and optimization for the hybrid sponges. Demonstrative applications of the [C(NH 2 ) 3 ]ClO 4 -PU array suggest potential uses in interactive electronics and robotic systems.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.202104107.

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Section: Methodsmentioning

confidence: 99%

Molecular Ferroelectric‐Based Flexible Sensors Exhibiting Supersensitivity and Multimodal Capability for Detection

Zhang

et al. 2021

Advanced Materials

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“…Corresponding to the vibration-type energy sources, there are also non-vibration energy sources that are widely present in the natural environment, represented by thermal energy and solar energy [130][131][132][133][134][135][136][137]. Harvesters for this type of energy source have a relatively compact structure because they do not require components designed to sense external vibrations.…”

Section: Energy Harvesting From Non-vibrational Sourcesmentioning

confidence: 99%

Evolution of Micro-Nano Energy Harvesting Technology—Scavenging Energy from Diverse Sources towards Self-Sustained Micro/Nano Systems

Guo

Lee

2023

Nanoenergy Advances

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Facing the energy consumption of a huge number of distributed wireless Internet of Things (IoT) sensor nodes, scavenging energy from the ambient environment to power these devices is considered to be a promising method. Moreover, abundant energy sources of various types are widely distributed in the surrounding environment, which can be converted into electrical energy by micro-nano energy harvesters based on different mechanisms. In this review paper, we briefly introduce the development of different energy harvesters according to the classification of target energy sources, including microscale and nanoscale energy harvesters for vibrational energy sources, microscale energy harvesters for non-vibrational energy sources, and micro-nano energy harvesters for hybrid energy sources. Furthermore, the current advances and future prospects of the applications of micro-nano energy harvesters in event-based IoT systems and self-sustained systems are discussed.

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“…In this regard, self-sustained devices and systems that can operate independently without external power supplies are highly promising and desirable. Energy harvesters are the key enabler for such self-sustained systems, since they can scavenge the ambient available energy and convert it into electricity as the power source. − Differentiated by the transducing mechanisms, energy harvesters can be classified into different types, e.g ., photovoltaic or solar cell based on the photovoltaic effect, thermoelectric generator (TEG) based on the Seebeck effect, − pyroelectric nanogenerator (PyENG) based on the pyroelectric effect, , electromagnetic generator (EMG) based on the electromagnetic induction, − piezoelectric nanogenerator (PENG) based on the piezoelectric effect, − triboelectric nanogenerator (TENG) based on the contact electrification and electrostatic induction, − etc . Since its first invention in 2012, TENG has been vastly investigated and proven as a highly promising energy harvesting technology for ubiquitous mechanical energy harvesting (human activities, vibration, wave, wind, rain, etc .…”

Section: Introductionmentioning

confidence: 99%

Progress of Advanced Devices and Internet of Things Systems as Enabling Technologies for Smart Homes and Health Care

et al. 2022

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In the Internet of Things (IoT) era, various devices (e.g., sensors, actuators, energy harvesters, etc.) and systems have been developed toward the realization of smart homes/buildings and personal health care. These advanced devices can be categorized into ambient devices and wearable devices based on their usage scenarios, to enable motion tracking, health monitoring, daily care, home automation, fall detection, intelligent interaction, assistance, living convenience, and security in smart homes. With the rapidly increasing number of such advanced devices and IoT systems, achieving fully self-sustained and multimodal intelligent systems is becoming more and more important to realize a sustainable and all-in-one smart home platform. Hence, in this Review, we systematically present the recent progress of the development of advanced materials, fabrication techniques, devices, and systems for enabling smart home and health care applications. First, advanced polymer, fiber, and fabric materials as well as their respective fabrication techniques for large-scale manufacturing are discussed. After that, functional devices classified into ambient devices (at home ambiance such as door, floor, table, chair, bed, toilet, window, wall, etc.) and wearable devices (on body parts such as finger, wrist, arm, throat, face, back, etc.) are presented for diverse monitoring and auxiliary applications. Next, the current developments of self-sustained systems and intelligent systems are reviewed in detail, indicating two promising research directions in this field. Last, conclusions and outlook pinpointed on the existing challenges and opportunities are provided for the research community to consider.

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On the evaluation of output voltages for quantifying the performance of pyroelectric energy harvesters

Cited by 18 publications

References 37 publications

Molecular Ferroelectric‐Based Flexible Sensors Exhibiting Supersensitivity and Multimodal Capability for Detection

Molecular Ferroelectric‐Based Flexible Sensors Exhibiting Supersensitivity and Multimodal Capability for Detection

Evolution of Micro-Nano Energy Harvesting Technology—Scavenging Energy from Diverse Sources towards Self-Sustained Micro/Nano Systems

Progress of Advanced Devices and Internet of Things Systems as Enabling Technologies for Smart Homes and Health Care

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