A comprehensive review of flexible piezoelectric generators based on organic-inorganic metal halide perovskites

Jella, Venkatraju; Ippili, Swathi; ), 엄지호 ( Ji-ho Eom; Pammi, S.V.N.; 정장수,; Tran, Van‐Dang; Nguyễn, Văn Hiếu; Kirakosyan, Artavazd; 윤석진,; 김들,; 신문렬,; 최지훈,; Kim, Yun-Jeong; Kim, Hye Jin; 윤순길,

doi:10.1016/j.nanoen.2018.12.038

Cited by 141 publications

(102 citation statements)

References 171 publications

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“…However, these materials are mostly brittle and rigid, which limits their application for flexible or wearable devices. Researchers have synthesized nanosized materials or have mixed these materials with polymers to construct fiber or film to assemble more flexible devices . These devices also demonstrate high output performance, which shows a good capability to harness the mechanical energy from human motion.…”

Section: Materials For Energy Conversion Devicesmentioning

confidence: 99%

Fiber‐Based Energy Conversion Devices for Human‐Body Energy Harvesting

et al. 2019

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body is actually a tremendous storehouse of energy that is generated from body heat and motion. [15][16][17][18][19] Power generation from breathing, heating, blood transport, arm motion, typing, and walking could reach to over 100 W for a 68 kg adult's daily activities (Figure 1). [20] Thus, converting 1% of power from the human body may be enough to support the work of most portable electronics.In the past two decades, researchers have developed several energy conversion devices based on piezoelectricity, electrostaticity, triboelectricity, or thermoelectricity that can directly harvest the mechanical or thermal energy and convert it into electric energy (these conversion devices are so-called nanogenerators (NGs)). [21][22][23][24][25] The first nanogenerator (NG) based on ZnO was invented by Prof. Wang in 2006; after that, various NGs were developed to harvest the mechanical or thermal energy with the output performance increasing gradually. [26] These NGs are easy-to-construct flexible devices since most materials for these devices are polymers and nanomaterials. Generally, the flexible devices assembled by film materials can be stretchable and bendable in one direction. But their lack of air-permeability, poor 3D deformation, and low damage tolerance limit their application, especially for wearable electronics. Therefore, fiberbased energy conversion devices have been designed. [27] These fiber-based devices can also be knitted to yarn or fabric in the clothing system to build up a large area electronic system. [28,29] The energy generation and internal charging can be realized by means of a self-powered system that harvests the energy from natural sources around the human body to sustain the wearable electronics. [30][31][32] The search for functional materials that possess good conversion efficiency, as well as great mechanical and environmental stability, combined with a novel device design might push these devices to meet the requirement of a practical application. In the past decade, numerous contributions have been offered to improve the performance of fiber-based energy conversion devices (FBECD) and extend its application. This review specifically summarizes FBECD with different energy conversion mechanisms including piezoelectricity, electrostaticity, triboelectricity, and thermoelectricity in recent processes (Figure 2). The functional materials, fiber fabrication techniques, and device design strategies for different classes of FBECDs are covered in the article. We also introduce an overview of the fiber-based self-powered system and sensors and Following the rapid development of lightweight and flexible smart electronic products, providing energy for these electronics has become a hot research topic. The human body produces considerable mechanical and thermal energy during daily activities, which could be used to power most wearable electronics. In this context, fiber-based energy conversion devices (FBECD) are proposed as candidates for effective conversion of human-body energy into electricity...

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Section: Materials For Energy Conversion Devicesmentioning

confidence: 99%

Fiber‐Based Energy Conversion Devices for Human‐Body Energy Harvesting

et al. 2019

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“…Among them, energy storage devices include lithium-ion batteries, Zn batteries, and supercapacitors, and so forth. 1,2,[18][19][20][21][22][23][24] Energy conversion devices primarily involve piezoelectric and triboelectric nanogenerators, and solar cells. 5,19,20,25 The hybrid power supplies consist of two typical devices above.…”

Section: Introductionmentioning

confidence: 99%

“…1,2,[18][19][20][21][22][23][24] Energy conversion devices primarily involve piezoelectric and triboelectric nanogenerators, and solar cells. 5,19,20,25 The hybrid power supplies consist of two typical devices above. 15,[26][27][28][29] The noninvasive sensors for healthcare can be generally classified as tactile sensors, temperature sensors, gas sensors, sweat sensors, and so on.…”

Section: Introductionmentioning

confidence: 99%

Integration designs toward new‐generation wearable energy supply‐sensor systems for real‐time health monitoring: A minireview

Tang

et al. 2020

InfoMat

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Wearable sensing systems, as a spearhead of artificial intelligence, are playing increasingly important roles in many fields especially health monitoring. In order to achieve a better wearable experience, rationally integrating the two key components of sensing systems, that is, power supplies and sensors, has become a desperate requirement. However, limited by device designs and fabrication technologies, the current integrated sensing systems still face many great challenges, such as safety, miniaturization, mechanical stability, energy‐efficiency, sustainability, and comfortability. In this review, the key challenges and opportunities in the current development of integrated wearable sensing systems are summarized. By summarizing the typical configurations of diverse wearable power supplies, and recent advances concerning the integrated sensing systems driven by such power supplies, the representative integrated designs, and micro/nanofabrication technologies are highlighted. Lastly, some new directions and potential solutions aiming at the device‐level integration designs are outlooked.

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“…OIHPs also process dielectric polarization property. They have successfully been applied as piezoelectric generators23 and optical phase shifters 24. Many researchers around the world are working on these charming materials and developing a variety of novel devices 25,26.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Electronic Skin Based on Perovskite Intermediate Gels

Wang

Tian

et al. 2020

Adv Elect Materials

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Electronic skin (e‐skin) has attracted extensive attention owing to its potential application in biomedical sensors, intelligent robots, and bionic prostheses. To imitate better or even surmount the perceptive capabilities of human skin, multifunctional e‐skin is an important trend in the field. A novel stable perovskite intermediate gel (PIGel) is obtained during the MA2SnI6 perovskite crystallization process. This Sn‐based PIGel exhibits good conductivity and outstanding wettability on different polymer substrates. Based on these properties, it is successfully applied to the field of e‐skin. Flexible and stretchable multifunctional e‐skin sensors are developed based on it. Stretching, finger bending, voice recognition, pulse monitoring, temperature, and electricity response are achieved in one e‐skin device. In addition, the MA2SnI6 perovskite single crystal is prepared by solvent engineering. The formation mechanism of the PIGel and MA2SnI6 single crystal is studied in detail. This work broadens the selection range of sensing materials for e‐skin and paves the way to achieve multifunctional sensors with the facile fabrication process.

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A comprehensive review of flexible piezoelectric generators based on organic-inorganic metal halide perovskites

Cited by 141 publications

References 171 publications

Fiber‐Based Energy Conversion Devices for Human‐Body Energy Harvesting

Fiber‐Based Energy Conversion Devices for Human‐Body Energy Harvesting

Integration designs toward new‐generation wearable energy supply‐sensor systems for real‐time health monitoring: A minireview

Multifunctional Electronic Skin Based on Perovskite Intermediate Gels

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