A retrospect on the role of piezoelectric nanogenerators in the development of the green world

M, Ani Melfa Roji; Jiji, G. Wiselin

doi:10.1039/c7ra05256a

Cited by 41 publications

(18 citation statements)

References 297 publications

(147 reference statements)

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“…Alternatively, applying an electric field on a piezoelectric material can cause a mechanical strain. There are two cases of PENG [11,16], one where the individual nanostructure (nanowire/nanorod) [17] is subjected to the strain exerted perpendicular to the growing direction of the nanowire/nanorod, which leads to the generation of the electric field. Figure 4a shows the working of PENG when the force is applied perpendicular to its axis.…”

Section: Nanogenerators Based On Piezoelectric Effectmentioning

confidence: 99%

“…To effectively enhance the output power of the PENG, several nanowires are stacked together to effectively synchronize the voltage output of each nanowire. Two effective integrations of nanowires were developed by Wang et al [11,16]; one is vertical-nanowire-integrated nanogenerator in which the vertically grown nanowires are stacked together (Figure 5a). The working mechanism of vertically integrated PENGs includes lateral bending and vertical compression of nanowires as explained earlier.…”

Section: Nanogenerators Based On Piezoelectric Effectmentioning

confidence: 99%

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Nanogenerators as a Sustainable Power Source: State of Art, Applications, and Challenges

et al. 2019

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A sustainable power source to meet the needs of energy requirement is very much essential in modern society as the conventional sources are depleting. Bioenergy, hydropower, solar, and wind are some of the well-established renewable energy sources that help to attain the need for energy at mega to gigawatts power scale. Nanogenerators based on nano energy are the growing technology that facilitate self-powered systems, sensors, and flexible and portable electronics in the booming era of IoT (Internet of Things). The nanogenerators can harvest small-scale energy from the ambient nature and surroundings for efficient utilization. The nanogenerators were based on piezo, tribo, and pyroelectric effect, and the first of its kind was developed in the year 2006 by Wang et al. The invention of nanogenerators is a breakthrough in the field of ambient energy-harvesting techniques as they are lightweight, easily fabricated, sustainable, and care-free systems. In this paper, a comprehensive review on fundamentals, performance, recent developments, and application of nanogenerators in self-powered sensors, wind energy harvesting, blue energy harvesting, and its integration with solar photovoltaics are discussed. Finally, the outlook and challenges in the growth of this technology are also outlined.

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Section: Nanogenerators Based On Piezoelectric Effectmentioning

confidence: 99%

Section: Nanogenerators Based On Piezoelectric Effectmentioning

confidence: 99%

Nanogenerators as a Sustainable Power Source: State of Art, Applications, and Challenges

et al. 2019

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“…Similarly, in piezoelectric devices, the NAs provide the required reversible flexibility for the generation of electrical energy from mechanical energy or vice versa. [ 96,98,99 ] This alignment will create an incessant pathway for the conduction of the charge carriers. While numerous synthetic techniques have been demonstrated for aligned NAs, it is still very challenging to achieve these structures due to high cost, slow growth, and lack of reproducibility.…”

Section: Aligned Nas Synthesis and Their Water Splittingmentioning

confidence: 99%

Quasi‐1D Aligned Nanostructures for Solar‐Driven Water Splitting Applications: Challenges, Promises, and Perspectives

et al. 2021

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Solar energy conversion is considered to be one of the promising alternatives to fossil fuels. The photoelectrochemical (PEC) water splitting into hydrogen and oxygen is a prominent approach to utilize solar energy to produce clean hydrogen energy. In PEC water splitting, semiconductors play a central role for absorbing the solar radiations in the UV‐visible region and generating electron‐hole pairs that contribute to water splitting. This review provides an extensive overview of the 1D aligned nanoarrays (1D‐NAs) and their architectures as photoactive materials. 1D‐NAs can be in the form of nanorods (NRs), nanowires (NWs), nanopencils, and nanotubes (NTs), etc. The initial part of the review is dedicated to the synthesis and characterizations of the 1D‐NAs, which is followed by useful synthetic protocols explicitly employed for the synthesis of NAs morphologies and the mechanisms involved in PEC water splitting. The final section of the review provides examples of highly anticipated TiO2, ZnO, BiVO4‐based, and other miscellaneous aligned NAs utilized for PEC water splitting. The PEC water splitting performance of aligned NAs is compared with other morphologies in terms of photocurrent densities. In this review, it is attempted to provide an account of state‐of‐the‐art stable, novel, and low‐cost aligned photoactive materials for PEC water splitting.

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“…There are some published reviews about piezoelectric energy harvesting, and yet most of them are primarily focused on topics including biomedicine [ 72 , 73 , 74 , 75 , 76 , 77 ], micro-electro-mechanical-systems (MEMS) [ 78 , 79 , 80 , 81 , 82 ], nanogenerators [ 83 , 84 , 85 ], materials [ 86 , 87 , 88 , 89 , 90 ], and variety energy harvesting [ 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 ]. However, this review focuses on the piezoelectric vibration energy harvesters with magnetic coupling.…”

Section: Introductionmentioning

confidence: 99%

A Review of Piezoelectric Vibration Energy Harvesting with Magnetic Coupling Based on Different Structural Characteristics

Jiang

Liu

Feng³

et al. 2021

Micromachines

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Piezoelectric vibration energy harvesting technologies have attracted a lot of attention in recent decades, and the harvesters have been applied successfully in various fields, such as buildings, biomechanical and human motions. One important challenge is that the narrow frequency bandwidth of linear energy harvesting is inadequate to adapt the ambient vibrations, which are often random and broadband. Therefore, researchers have concentrated on developing efficient energy harvesters to realize broadband energy harvesting and improve energy-harvesting efficiency. Particularly, among these approaches, different types of energy harvesters adopting magnetic force have been designed with nonlinear characteristics for effective energy harvesting. This paper aims to review the main piezoelectric vibration energy harvesting technologies with magnetic coupling, and determine the potential benefits of magnetic force on energy-harvesting techniques. They are classified into five categories according to their different structural characteristics: monostable, bistable, multistable, magnetic plucking, and hybrid piezoelectric–electromagnetic energy harvesters. The operating principles and representative designs of each type are provided. Finally, a summary of practical applications is also shown. This review contributes to the widespread understanding of the role of magnetic force on piezoelectric vibration energy harvesting. It also provides a meaningful perspective on designing piezoelectric harvesters for improving energy-harvesting efficiency.

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A retrospect on the role of piezoelectric nanogenerators in the development of the green world

Cited by 41 publications

References 297 publications

Nanogenerators as a Sustainable Power Source: State of Art, Applications, and Challenges

Nanogenerators as a Sustainable Power Source: State of Art, Applications, and Challenges

Quasi‐1D Aligned Nanostructures for Solar‐Driven Water Splitting Applications: Challenges, Promises, and Perspectives

A Review of Piezoelectric Vibration Energy Harvesting with Magnetic Coupling Based on Different Structural Characteristics

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