Article
Green & Sustainable Science & Technology
G. Dinesh Ram, S. Praveen Kumar, T. Yuvaraj, Sudhakar Babu Thanikanti, Karthik Balasubramanian
Summary: This paper proposes the design, optimization, and simulation of a piezoelectric-based bilayer MEMS solar energy harvester for powering smart wireless sensors. By utilizing the thermal conduction principle and piezoelectric effect, the electric potential is generated from the solar's infrared power. A bilayer cantilever made of aluminium and silicon-dioxide is designed to absorb heat from the sun and induce bending, resulting in stress at the fixed end where the piezoelectric material is placed. The finite element analysis in COMSOL software is conducted with a sinusoidal input heat flux, and the designed harvester is capable of generating an average open circuit voltage of 0.81 V, which can be utilized to charge rechargeable batteries in remote locations or power low power electronics.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Review
Materials Science, Multidisciplinary
M. A. Parvez Mahmud, Sajad Razavi Bazaz, Soroush Dabiri, Ali Abouei Mehrizi, Mohsen Asadnia, Majid Ebrahimi Warkiani, Zhong Lin Wang
Summary: Energy harvesting from ambient sources such as mechanical vibrations, thermal gradients, electromagnetic radiations, and solar radiations has made significant progress in recent times. The use of micro-electromechanical system (MEMS) and microfluidics technologies has allowed for downsizing of energy harvesters while ensuring a stable and portable power supply. This paper reviews advancements in energy harvesting technologies and discusses the potential applications and challenges in MEMS and microfluidics for energy harvesting.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Nanoscience & Nanotechnology
Anxin Luo, Yixin Xu, Yulong Zhang, Mi Zhang, Xiaoqing Zhang, Yan Lu, Fei Wang
Summary: This paper introduces a spray-coating method to deposit electret layer with enhanced charge stability, proposes a second-order linear model to analyze charge decay process, and designs an electrostatic energy harvester with spray-coated electret, showing effective power generation in harsh environments.
MICROSYSTEMS & NANOENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Rajib Mondal, Md Al Mahadi Hasan, Jeong Min Baik, Ya Yang
Summary: Heat energy, which is available in large quantities and often wasted, can be harnessed and converted into electrical energy for use in ultra-low power devices. Pyroelectric energy harvesting technology has gained significant attention in power generation and sensing systems due to its ability to scavenge thermal energy. Various pyroelectric and piezoelectric materials have been explored for their potential in energy harvesting and sensing applications. This review provides a comprehensive summary of the significance and physical applications of pyroelectric materials, including single crystal, inorganic films, ceramics, organic materials, polymers, and composites, for thermal energy harvesting in sensor devices. The potential for next-generation self-powered sensor technologies is also discussed.
Article
Engineering, Mechanical
Saber Azizi, Hadi Madinei, Javad Taghipour, Hassen M. Ouakad
Summary: The present study examines the effect of nonlinearity on the efficiency enhancement of a capacitive energy harvester, and evaluates the efficiency of the device near the primary and super-harmonic resonances. Bifurcation analysis is conducted to investigate the dynamics of the system. It is found that nonlinearity affects both the bandwidth broadening and efficiency improvement of the energy harvester.
NONLINEAR DYNAMICS
(2022)
Article
Engineering, Multidisciplinary
Li BoYuan, Qiu Yu, Huang Peng, Tang WenJie, Zhang XiaoSheni
Summary: This article introduces a wind energy hybrid harvester that combines a soft-friction and positive-directional triboelectric nanogenerator (SP-TENG) and a hierarchical rotating electromagnetic nanogenerator (HR-EMG) for constructing a self-powered forest environment monitoring microsystem. The system utilizes wind energy to power IoTs sensor nodes and enables environmental monitoring and wireless transmission.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2022)
Article
Chemistry, Analytical
Ye Xu, Sebastian Bader, Michele Magno, Philipp Mayer, Bengt Oelmann
Summary: Low-power energy harvesting for next-generation smart sensors and IoT devices often requires rectification of the output of kinetic energy harvesters. This study compares the performance of three passive rectifiers in a low-power electromagnetic energy harvesting system. Results show that while the full-wave bridge rectifier has lower power extraction efficiency at low rotational speeds, the voltage doubler and negative voltage converter rectifier demonstrate higher efficiency.
Article
Engineering, Mechanical
Bogdan Vysotskyi, Jose-Francisco Ambia Campos, Elie Lefeuvre, Alexis Brenes
Summary: This work investigates the frequency response of an electrostatic MEMS energy harvester with an innovative gap-overlap transducer design. The study provides theoretical and experimental evidence of the strongly nonlinear behavior in MEMS dynamics caused by this design solution. Increasing the bias voltage leads to a shift in the frequency response towards lower frequencies and bending towards higher frequencies. The proposed gap-overlap transducer configuration is shown to be a simple and efficient solution for increasing the bandwidth of MEMS energy harvesters.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Felipe A. Costa de Oliveira, Davies William de Lima Monteiro, Dalton Martini Colombo
Summary: This paper presents a study on a MEMS based micro-cantilever device with Aluminum Nitride thin film as a piezoelectric material for energy harvesting and vibration sensing. The device achieved a power output of 0.491 mu W at the resonance frequency of 163 Hz, showing potential for use as an energy harvester for low-power electronics and as a vibration sensor.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Physical
Jae Hoon Lee, Jun-Yong Lee, Jeong-Seon Yu, Jong-Hyun Kim
Summary: Electrical energy was harvested through the flexoelectric effect of nematic liquid crystal. By bending the liquid crystal cells, deformation and electric polarization were induced, resulting in energy generation. The electromotive force depended on bending, cell gap, and alignment, offering potential for various applications in the future.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Review
Chemistry, Multidisciplinary
P. Martins, N. Pereira, A. C. Lima, A. Garcia, C. Mendes-Filipe, R. Policia, V. Correia, S. Lanceros-Mendez
Summary: In recent years, printed electronics have gained popularity due to their unique features such as low-cost production, multifunctionality, stretchability, sustainability, and flexibility. With the increasing use of printed technologies in the future, especially with the advancements in the Internet of Things and the 4.0 revolution, it is important to discuss the relationship between printed technologies and electronic materials, including the joint features, interrelations, complementarities, interdependency, and challenges.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Shinji Bono, Satoshi Konishi
Summary: The spatial resolution of typical sensor probes is insufficient for accurately measuring the distribution of electric properties in microelectrical devices. However, liquid crystal droplets (LCDs) show promise in visualizing this distribution by exhibiting rotational and translational behaviors related to their location within the devices. Through experimental and numerical analysis, we demonstrate that rotating and transporting LCDs allow for the visualization of electric field and electrostatic energy distribution with a spatial resolution of 10 μm and a detection accuracy of 5 μV/μm. Furthermore, we can create an array of LCDs by designing periodic modulation of electrostatic energy density to serve as both a periodic modulator of refractive index and a sensor for observing electric properties in microelectrical devices.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Electrical & Electronic
Mengyao Yuan, Rupam Das, Eve McGlynn, Rami Ghannam, Qammer H. Abbasi, Hadi Heidari
Summary: The electronic contact lens is an ideal non-invasive platform for diagnosing and treating various diseases by using multiple biomarkers in the human eye. Recent advancements in technology have enabled the monitoring and diagnosis of different diseases through various sensors, with inductively coupled power transfer being considered as a favorable technique.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Physical
Kaveh Barri, Pengcheng Jiao, Qianyun Zhang, Jun Chen, Zhong Lin Wang, Amir H. Alavi
Summary: Researchers have introduced a novel concept called self-aware composite mechanical metamaterial (SCMM) that can transform mechanical metamaterials into nanogenerators and active sensing mediums. By studying new paradigms, they have achieved contact electrification between snapping microstructures composed of topologically different triboelectric materials, leading to self-powering and self-sensing meta-tribomaterial systems.
Article
Chemistry, Multidisciplinary
Alexander M. Jakob, Simon G. Robson, Vivien Schmitt, Vincent Mourik, Matthias Posselt, Daniel Spemann, Brett C. Johnson, Hannes R. Firgau, Edwin Mayes, Jeffrey C. McCallum, Andrea Morello, David N. Jamieson
Summary: This study discusses the material choice of silicon chips containing arrays of single dopant atoms for classical and quantum devices, as well as the method of near-surface implantation of single ions and the associated physics model and limiting factors.
ADVANCED MATERIALS
(2022)
