Special Issue "Recent Advances in Nanogenerators"

A special issue of Nanoenergy Advances (ISSN 2673-706X).

Deadline for manuscript submissions: 31 December 2021.

Special Issue Editors

Prof. Dr. Ya Yang
E-Mail Website
Guest Editor
Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
Interests: ferroelectric nanomaterials and devices; hybridizd and coupled nanogenerators; self-powered sensors; other energy-scavenging devices
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Zhong Lin Wang
E-Mail Website1 Website2
Guest Editor
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245, USA
Interests: nanogenerators and self-powered nanosystems; piezotronics for smart systems; piezo-phototronics for energy science and optoelectronics; hybrid cells for energy harvesting
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Converting nano-energies in our surroundings is essential to meet the challenges that we are facing in the Internet-of-things era. As a result, various types of nanogenerators have been developed to scavenge energies that are produced in the surrounding environment. Nanogenerators are based on using the Wang term ∂Ps/∂t as the driving force for converting mechanical energy into electricity regardless of whether nanomaterials are utilized or not. In 2006, piezoelectric nanogenerators were first reported, where zinc oxide nanowires were utilized to convert the mechanical energy from an atomic force microscope tip into electricity. In 2012, nanogenerators were further expanded to triboelectric nanogenerators, where PET and Kapton films were applied to construct the nanogenerator for converting mechanical energy from a linear motor. Since then, nanogenerators have been blossoming and the number of publications about nanogenerators has been increasing exponentially. Moreover, hybridized and coupled nanogenerators have been extensively reported; they can enhance the energy conversion efficiency and exhibit some special advantages over individual nanogenerators. For example, the hybridized electromagnetic–triboelectric nanogenerator can obtain more electric energy from one mechanical motion than an individual electromagnetic generator or triboelectric nanogenerator. Coupled nanogenerators exhibit one material, some electrodes, but different energy-scavenging functions and have a smaller size and higher performance than integrated nanogenerators. Pyroelectric and thermoelectric nanogenerators can be utilized to harvest thermal energy. The pyroelectric nanogenerator is based on the change in temperature with time, whereas the thermoelectric nanogenerator is based on the change in temperature across the device. Hence, this Special Issue of Nanoenergy Advances will report research and review articles to promote the development of nanogenerators.

Prof. Dr. Ya Yang
Prof. Dr. Zhong Lin Wang
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanoenergy Advances is an international peer-reviewed open access quarterly journal published by MDPI.

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Keywords

  • Triboelectric nanogenerators
  • Piezoelectric nanogenerators
  • Hybridized nanogenerators
  • Coupled nanogenerators
  • Pyroelectric nanogenerators
  • Thermoelectric nanogenerators

Published Papers (5 papers)

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Research

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Article
A Near-Zero Power Triboelectric Wake-Up System for Autonomous Beaufort Scale of Wind Force Monitoring
Nanoenergy Adv. 2021, 1(2), 121-130; https://doi.org/10.3390/nanoenergyadv1020006 - 01 Oct 2021
Viewed by 368
Abstract
Beaufort scale of wind force monitoring is the basic content of meteorological monitoring, which is an important means to ensure the safety of production and life by timely warning of natural disasters. As there is a limited battery life for sensors, determining how [...] Read more.
Beaufort scale of wind force monitoring is the basic content of meteorological monitoring, which is an important means to ensure the safety of production and life by timely warning of natural disasters. As there is a limited battery life for sensors, determining how to reduce power consumption and extend system life is still an urgent problem. In this work, a near-zero power triboelectric wake-up system for autonomous Beaufort scale of wind force monitoring is proposed, in which a rotary TENG is used to convert wind energy into a stored electric energy capacitor. When the capacitor voltage accumulates to the threshold voltage of a transistor, it turns on as an electronic switch and the system wakes up. In active mode, the Beaufort scale of wind force can be judged according to the electric energy and the signal is sent out wirelessly. In standby mode, when there is no wind, the power consumption of the system is only 14 nW. When the wind scale reaches or exceeds light air, the system can switch to active mode within one second and accurately judge the Beaufort scale of wind force within 10 s. This work provided a triboelectric sensor-based wake-up system with ultralow static power consumption, which has great prospects for unattended environmental monitoring, hurricane warning, and big data acquisition. Full article
(This article belongs to the Special Issue Recent Advances in Nanogenerators)
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Review

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Review
Ferroelectric Materials Based Coupled Nanogenerators
Nanoenergy Adv. 2021, 1(2), 131-180; https://doi.org/10.3390/nanoenergyadv1020007 - 25 Nov 2021
Viewed by 412
Abstract
Innovations in nanogenerator technology foster pervading self-power devices for human use, environmental surveillance, energy transfiguration, intelligent energy storage systems, and wireless networks. Energy harvesting from ubiquitous ambient mechanical, thermal, and solar energies by nanogenerators is the hotspot of the modern electronics research era. [...] Read more.
Innovations in nanogenerator technology foster pervading self-power devices for human use, environmental surveillance, energy transfiguration, intelligent energy storage systems, and wireless networks. Energy harvesting from ubiquitous ambient mechanical, thermal, and solar energies by nanogenerators is the hotspot of the modern electronics research era. Ferroelectric materials, which show spontaneous polarization, are reversible when exposed to the external electric field, and are responsive to external stimuli of strain, heat, and light are promising for modeling nanogenerators. This review demonstrates ferroelectric material-based nanogenerators, practicing the discrete and coupled pyroelectric, piezoelectric, triboelectric, and ferroelectric photovoltaic effects. Their working mechanisms and way of optimizing their performances, exercising the conjunction of effects in a standalone device, and multi-effects coupled nanogenerators are greatly versatile and reliable and encourage resolution in the energy crisis. Additionally, the expectancy of productive lines of future ensuing and propitious application domains are listed. Full article
(This article belongs to the Special Issue Recent Advances in Nanogenerators)
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Review
Progress in the Triboelectric Human–Machine Interfaces (HMIs)-Moving from Smart Gloves to AI/Haptic Enabled HMI in the 5G/IoT Era
Nanoenergy Adv. 2021, 1(1), 81-120; https://doi.org/10.3390/nanoenergyadv1010005 - 19 Sep 2021
Cited by 2 | Viewed by 1013
Abstract
Entering the 5G and internet of things (IoT) era, human–machine interfaces (HMIs) capable of providing humans with more intuitive interaction with the digitalized world have experienced a flourishing development in the past few years. Although the advanced sensing techniques based on complementary metal-oxide-semiconductor [...] Read more.
Entering the 5G and internet of things (IoT) era, human–machine interfaces (HMIs) capable of providing humans with more intuitive interaction with the digitalized world have experienced a flourishing development in the past few years. Although the advanced sensing techniques based on complementary metal-oxide-semiconductor (CMOS) or microelectromechanical system (MEMS) solutions, e.g., camera, microphone, inertial measurement unit (IMU), etc., and flexible solutions, e.g., stretchable conductor, optical fiber, etc., have been widely utilized as sensing components for wearable/non-wearable HMIs development, the relatively high-power consumption of these sensors remains a concern, especially for wearable/portable scenarios. Recent progress on triboelectric nanogenerator (TENG) self-powered sensors provides a new possibility for realizing low-power/self-sustainable HMIs by directly converting biomechanical energies into valuable sensory information. Leveraging the advantages of wide material choices and diversified structural design, TENGs have been successfully developed into various forms of HMIs, including glove, glasses, touchpad, exoskeleton, electronic skin, etc., for sundry applications, e.g., collaborative operation, personal healthcare, robot perception, smart home, etc. With the evolving artificial intelligence (AI) and haptic feedback technologies, more advanced HMIs could be realized towards intelligent and immersive human–machine interactions. Hence, in this review, we systematically introduce the current TENG HMIs in the aspects of different application scenarios, i.e., wearable, robot-related and smart home, and prospective future development enabled by the AI/haptic-feedback technology. Discussion on implementing self-sustainable/zero-power/passive HMIs in this 5G/IoT era and our perspectives are also provided. Full article
(This article belongs to the Special Issue Recent Advances in Nanogenerators)
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Review
Surface Engineering for Enhanced Triboelectric Nanogenerator
Nanoenergy Adv. 2021, 1(1), 58-80; https://doi.org/10.3390/nanoenergyadv1010004 - 18 Sep 2021
Viewed by 421
Abstract
Triboelectric nanogenerator (TENG) is the new technique that can convert low-frequency mechanical energy into effective electricity. As an energy collector, the pursuit of high output characteristics is understandable. Although high charge density has been achieved by working in high vacuum or charge pumping [...] Read more.
Triboelectric nanogenerator (TENG) is the new technique that can convert low-frequency mechanical energy into effective electricity. As an energy collector, the pursuit of high output characteristics is understandable. Although high charge density has been achieved by working in high vacuum or charge pumping techniques, it remains challenging to obtain the high output performance directly in the atmosphere. Herein, surface-engineering of the triboelectric layer for enhancing output performance has been reviewed carefully. By constructing surface morphology or developing surface modification, high performance of TENGs is finally presented in the review. Full article
(This article belongs to the Special Issue Recent Advances in Nanogenerators)
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Review
Advances of High-Performance Triboelectric Nanogenerators for Blue Energy Harvesting
Nanoenergy Adv. 2021, 1(1), 32-57; https://doi.org/10.3390/nanoenergyadv1010003 - 26 Aug 2021
Cited by 2 | Viewed by 742
Abstract
The ocean is an enormous source of blue energy, whose exploitation is greatly beneficial for dealing with energy challenges for human beings. As a new approach for harvesting ocean blue energy, triboelectric nanogenerators (TENGs) show superiorities in many aspects over traditional technologies. Here, [...] Read more.
The ocean is an enormous source of blue energy, whose exploitation is greatly beneficial for dealing with energy challenges for human beings. As a new approach for harvesting ocean blue energy, triboelectric nanogenerators (TENGs) show superiorities in many aspects over traditional technologies. Here, recent advances of TENGs for harvesting blue energy are reviewed, mainly focusing on advanced designs of TENG units for enhancing the performance, through which the response of the TENG unit to slow water agitations and the output power of the device are largely improved. Networking strategy and power management are also briefly discussed. As a promising clean energy technology, blue energy harvesting based on TENGs is expected to make great contributions for achieving carbon neutrality and developing self-powered marine systems. Full article
(This article belongs to the Special Issue Recent Advances in Nanogenerators)
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